Well, for anyone wondering, my experiences thus far are almost all positive, in general, with GOGs (tried EWJ, Septerra Core, Cannon Fodder, and Screamer), and with other games (Fable, Dead Space) . Haven't done extensive game playing yet, but so far it's all good and seems a lot more stable than when I upgraded from one torrented build to another (not recommended) -- was getting a lot of blue screens with both, especially the second..no problems yet to report with this one. :)

Well if you want, I can have a look around town & see how much I cen get it for

I am using Windows 7 - 64 Bit now. I have no problem except Fallout 3. GFWL is not working on Windows 7.
And here is the test of W7 for games and apps.
http://www.pcgameshardware.com/aid,683360/Windows-7-Release-Candidate-Test-with-games-and-applications/Reviews/

That may not be related to Win7.
Thanks for the link! :)

The test doesn't include x64? Madness!

Says they're workin' on it.

I just got done with playing The Pitt on Win 7 x64. Ran great. I've found it plays a little better on 7 than on Vista, that is the harddrive access seemed faster, and didn't seem to take as long to load data. Of course, this is all perception so take what I say with copious amounts of salt.

Removing such components can and will cause problems later on, especially when installing service packs. If you want to rebuild your installation media and reinstall all your software every time a new service pack comes out, sure, go for it, but it's strongly discouraged. Unless you are using a netbook or a really outdated system, the space Windows takes up is an insigificant fraction of the hard drive.
This is a really bad idea for several reasons. The space taken up by sound effects and other content is laughably small, and removing drivers would greatly cripple the "plug and play" functionality and wide hardware support Windows is known for. With a normal Windows install you can plug in any device in existence and there's a good chance that Windows includes an official driver for it or can fall back on a partially-functional, generic driver. Some devices simply don't work correctly with generic drivers. Having the non-generic drivers missing from the Windows install would mean Windows would have to ask for the CD or internet access (for a Windows Update driver search) in order to do anything with that device. If such a hypothetical feature were available, some computer manufacturers might ship OEM systems installed that way to cheat on the free space available (especially on netbooks), and people would then blame Microsoft when the system couldn't detect hardly anything right out of the box without a CD or internet connection.
With the average computer shipping with a hard drive anywhere from 160-320+ GB, Windows 7 taking up about 10-15 GB isn't at all unreasonable. For comparison, GTA IV takes up 18 GB (no, that's not a typo), a reflection of the average size of games in the near future. Every version of Windows is inevitably larger, but hard drive sizes are growing at a much faster pace.

Strange, game is running fine but GFWL is not working for me.

Honestly I'd be just blaming GFWL. It's awful, and apparently the cause of many issues with Fallout 3 across several operating systems. Have you tried just uninstalling everything? (Don't forget that you have to explicitly uninstall GWFL from add/remove programs) I remember I had some issues with GFWL a while back and after uninstalling it and reinstalling it started working again.

I found the problem. I have Steam version of Fallout 3 and I patched (1.5 version) the game manually with retail patch. Problem is this. I reinstalled the game and waiting Steam to update the game to 1.5.

I just installed the RC, and holy cunting shit! This is the ugliest OS I've ever laid eyes on! I seriously want to claw my fucking eyes out. The cunting arsebandits that constructed this mess should have their nose split! But it seems pretty responsive, and works quite well. Did have some problems with a sound driver, though I managed to fix that. How? By using some automated Windows thing. I can assure you that I was very surprised when it actually worked.
EDIT:
Oh, wow. I sat trying to figure out a way to install Vista themes in Windows 7 (which some had actually managed), but after some fiddling around, I managed to wreck some DLL file with the word "KERNEL" in it's name, and now I can't login. So, in less than 30 min I managed to destroy the OS by editing some theme related files. Amazing.
Win7 also for some reason ate all my Internet, so everything went so damn slow, which was rather weird.

I think Vista looks a lot better than Windows 7. Win7 looks like a mangled KDE, raped by elephants.
Never had any problems with it in other OSs, but since it's still a test version, I suppose it's not entirely stable yet... But the entire reason for trying was because of the ass ugly default theme, and that I wanted test how far I could push it.
It wasn't that the Internet speed was slow on my computer alone. There are four computers that are use regularly for Internet here, and all of them was affected by it.
But using proper drivers would probably be better than the default crap, yes.

I might actually get around to installing this at the weekend now. Finally got a new drive I could use. I just don't want to ruin my current install...