I don't have links, I just have first hand experience.

StingingVelvet and I had a rather lengthy discussion on this matter in a previous thread. I linked to quite a few relevant cases in that thread, so feel free to better inform yourself on the matter (cases are from US courts, but I don't think IP laws in Japan are significantly different). Also pay heed to Arkose's post, as he pretty much nails the key points on this issue.

I linked to quite a few relevant cases in that thread
And how many of those linked cases specifically dealt with computer software? Feel free to find some such cases that back up your point. Until such a time, cases dealing with music CDs and patents are not relevant enough and do not provide a "broad enough ruling" to cover software based EULAs. Perhaps you should look at some cases dealing specifically with such cases?
They exist and if I still had the documentary I recorded from TV dealing with this, I'd quote some cases, but it's long been recorded over thanks to the kids.

Vernor v. Autodesk. Or you can just read the summary. And I had already referenced that case specifically earlier in the thread I linked you to. Additionally, as there's no difference in legal status between copyrighted software and any other type of copyrighted works, all cases that deal with copyrighted works in general also set precedent for copyrighted software unless there's more specific overriding precedent. Now, please actually take the time to read up on the matter before posting further on it, as I'm really not in the mood to humor yet another instance of willful ignorance.

You know what, forget it. I can't be arsed with this.

Oy vey, that video needs an intermission.
Anyhoo, try GCFPrep to free your Steam games from the Steam client. There are other solutions as well if that one doesn't strike your fancy. Minimal effort required. Problem solved.

How does that affect the multiplayer aspect? More importantly if you use it, can you be banned for it (eg it might count as hacking)?
Couldn't disagree more man. Doom 2 was SO not a fun game!

doom 2 or farcry 2... or both?

Well I haven't played far cry 2 but if it follows the traditions of FC1 I'd expect an interesting open world shooter that gets ruined halfway through and turns into irritating grind

That would be quite accurate description. Game has just several types of missions and then it repeats them over and over again. When you think you've had enough, it just dumps you into a new game area with less sense than before. And then you get those same missions again and again. For an example, when you are not on a mission, there are just some random respawning sentries all over. Then you take a mission and bam, there as a big truck with guards driving around one area round and round. Till you destroy it of course.
Open world can be nice, but having no idea what to do with it is not that nice (and moving 10 minutes to a place just to do another meaningless mission just to get next one and pray to get somewhere in the so called "plot"). And then you spend even more time getting those stupid malaria medicines that just are there to annoy the player...
I liked Far Cry 1 for the first half. Then I got annoyed and stopped playing. :)

there are no DRM on steam, you can enable the "offline mode" and play the games offline.
You can even launch lots of them directly from the exe, it's not a DRM, more an annoying flaw of the client itself

But don't they have to reauthenticate periodically and didn't weclock's vid show that some games cant be played unless signed in?

Steam is DRM, don't be silly.

Wec do you have a screenshot of your account being disabled?