Picture, dude.

OK.
BTW, just picked up Mirror's Edge. I'll let you know how it went in a couple of days. :)

None (though I have a few games from the catalogue bought OUTSIDE gog)
I'm on a strict budget, and am making an effort to win promo codes

At the moment I have 22 folders on my external HD in the GOG directory. So if you exclude the three free games, I bought 19.
In Alphabetical order:
Alien Nations
Alien Nations 2 ("The Nations" in catalogue)
Beneath A Steel Sky
Chessmaster 9000
Colin McRae Rally 2005 (R.I.P)
Disciples 2 Gold
Duke Nukem 3D Atomic Edition
Duke Nukem Manhattan Project
Earth 2140
Earth 2150
Earth 2160
Empire Earth
Evil Genius
Ghost Master
Giants - Citizen Kabuto (Citizen Ka-what? Roseboo? :-) )
Knights and Merchants
Lure of the Temptress
Painkiller
Septerra Core
Stronghold
Stronghold Crusader
Teen Agent
You can add Megarace 3 and Screamer, too, though. Although I will probably never much play any of these, I'll buy it at this week's promo. Just as I did with CMR. :-)
The big problem is, GOG has so many good games at low prices and without any DRM, I almost can't choose which one to buy first. My wishlist has another 24 games after I updated it today. :-)

Sweet! Look forward to it. I think Im gonna get it myself soon, along with Dead Space and maybe even Mass Effect.

Yeah I definitely recommend getting a very capable machine for it.
Pfft everyone goes OT here, even the GOG team. :)

there are 10 games on my "shelf"

This is what's on my shelf. Don't mind the caps: I am not shouting, it just copied and pasted that way.
BENEATH A STEEL SKY
COLIN MCRAE RALLY 2005
DUKE NUKEM 3D: ATOMIC EDITION
FALLOUT
FALLOUT 2
LURE OF THE TEMPTRESS
PRINCE OF PERSIA®: THE SANDS OF TIME
RISE OF THE TRIAD: DARK WAR
TEENAGENT
UNREAL GOLD
UNREAL TOURNAMENT 2004 ECE
Not that I have had a chance to play them all yet. Real life has a way of interfering with my strangely reclusive gamer life. What's a guy to do?

Nine as of now, soon I'll probably grab Tex Murphy: Overseer, which will make it ten.
In the order I bought them:
Redneck Rampage Collection
Duke Nukem 3D Atomic Edition
Unreal Tournament 2004
Megarace 1+2
Tex Murphy: Under A Killing Moon
Tex Murphy 1+2
Painkiller Black Edition (haven't even played this yet, it was a recommendation)
Cannon Fodder
Tex Murphy: The Pandora Directive
And of course I grabbed all the free ones.

18:
Duke Nukem 3D
Duke Nukem Manhatten Project (Promo code)
MDK
MDK 2 (Gift)
Abe's Oddysee (Promo Code)
Giants: Citizen Kabuto
Beneath a Steel Sky
Lure of the Temptress
In Cold Blood (It's crap)
Teenagent
The Guild (Gift) <--- BUY THIS GAME
Stronghold
Stronghold Crusader <--- BUY THIS GAME
Heroes of Might and Magic <--- BUY THIS GAME
Rise of the Triad (Gift)
Blake Stone: Aliens of Gold
IL-2 Sturmovik (Promo code)
Earth 2150 Trilogy (Gift/Prize)

40
Freespace 2
Stonekeep
Conquest of the New World
Gothic
Sacrifice
Unreal Tournament 2004
Disciples 2 Gold
Fallout
Port Royale 2
Fallout 2
Patrician 3
Broken Sword 2
Pure Pinball 2
Stronghold
Waxworks
Painkiller Black
Gothic 2 Gold
Screamer
Flatout
Seven Kingdoms
Seven Kingdoms 2
Duke Nukem 3D
Pro Pinball Timeshock
Earth 2140
Alien Nations
Warlords Battlecry 3
Septerra Core
Far Cry
Pro Pinball: Big Race USA
Ishar Compiliation
Heroes of Might and Magic
Celtic Kings
Castles + Castles 2
Max + Max 2
Tex Murphy 1+2
Tex Murphy: Under a Killing Moon
Knights and Merchants
Lords of Magic

Here is my updated games collection.

Fallout 1/2/ tactics
Flatout
Toca 3 Racing
Colin Mcrae Rally 05

Colin McRae Rally 2005
Descent 1 & 2
Megarace 3
Screamer