Fallout Tactics
Giants : Citizen Kabuto
Operation Flashpoint
Once I get through some of the games I'm working on, Soldiers : Heroes of WW2, Gothic, Ghostmaster, Sacred and Jagged Alliance : Deadly Games are all pretty good possibilities.

A lot.
Earthworm Jim 1 + 2
Toca Race Driver 3
M.A.X + M.A.X. 2
Earthworm Jim 3D
Stonekeep
Fallout
Redneck Rampage Collection
Shogo: Mobile Armor Division
Perimeter
Shattered Steel
Kingpin: Life of Crime
Not sure what I'll get next, since I own most the other games on the service already.

this threads tl;dr
NOT NEARLY ENOUGH

Fallout
Fallout 2 (the buy 1 get 1 promotion)
Giants: Citizen Kabuto
Fallout Tactics
Toca Race Driver 3
Descent + Descent 2
Sacred Gold
I facepalmed realizing how much beer I could have got with this money. ;_;

Currently three (MDK+ free coupon for Stonekeep and the mighty Shogo), but I'm planning to purchase much more in the not-so-distant future....

Woah! Seems like almost everyone who has bought a game, has some variant of Fallout in their collection..

i bought
-fallout 1
-fallout 2
-freespace
-freespace2
next month plan to buy more...

So far, only the Fallout games, but that is mostly because there is a billion games coming out right now, so buying older games will have to wait 'til the dry season.

Well that is the series that attracted me to this spot in the first place...
Saw a big GOG/Fallout ad at...either duck and cover or no mutants allowed. I think it was NMA. Thought that was kind of cool ;)

So far I have the Fallout trilogy, Lionheart, and Sacred Gold all from GOG.

12 so far.
(games list attached)

Descent 1 + 2
Freespace 2 (coupon so it was free)
Fallout

three so far:
Operation Flashpoint
Fallout
Fallout 2
hoping for:
Medieval: Total War + Viking Invasion + Patch 2.01
Deus Ex
Planescape Torment

Evolva
Fallout Tactics
Sacrifice
All games I wanted when they were released, but never had the resources to get. Of the remaining games currently offered, I already have the ones I want.

Just Fallout so far, and like most of us this time of year, I'm really busy with other games (Doom 3, Dragon Quest IV, Gears of War, Fable: TLC at the moment, and many more to get to) so I won't be playing any others I buy for awhile...
Come payday its Fallout 2, and I think MDK/MDK2/Giants and maybe EJ. Sacrifice seems awesome but I dont think its quite for me.
I'm severely addicted to this site..I can't wait for more new releases. MORE MORE MORE. :D