I suppose the general consensus is system shock, alone in the dark, and duke nukem would all be awesome.
But I'd also like to see stuff like return to castle wolfenstien and original warcraft I and II, Prince of Persia, even some old edutainment games.. yeah i was a youngin when some of those games came around, but yea, seriously, i got attached..
also, if you could please put simant on here..

UFO all old ones
Panzer General
Fantasy General
Civilization 1 :)
Will be nice

TIE Fighter !!!!
Dune 2

I'd love to see Space Bucks, Death Rally and anything Firaxis has made.

Besides the obvious stuff (Ultima, Wing cOMmander, Sierra, Lucasasrts adventures,...)
I'd really like to see titles like:
Dreamweb (very cool, dark, adventure from mid-nineties)
Panzer General and all its sequels, offsprings
Arcanum
Dungeon keeper
Sim City series
Civilization 2
The Neverhood
Novalogic Flight Simulators + Delta Force series
Sanitarium
Little Big Adventure
Dark Reign
Groun Control
X-Wing Alliance
Strike Commander
Bioforge
Shannara
Dark seed
Woodruff and the Schnibble of Azimuth
Bermuda Syndrome (!)

Dungeon Keeper 2
Populous: The Beginning (and the Undiscovered Worlds expansion)
Blood Omen: Legacy of Kain
Sensible Soccer
Shadowman
Turok 2: Seeds of Evil
Duke Nukem 3D
Quake (with music)
Blood
Any SEGA PC games
Any LucasArts adventures

Obsidian

If this service could scrounge up the Monkey Island games, the Baldur's Gate games, and Planescape: Torment, I will be one VERY happy camper.

Probably been mentioned, But I hope to see Planscape: Torment on here in the near future. I've heard many good things about it, but could never find it at a reasonable price.

System Shock 1 and 2, both Crusaders, meaning No remorse and No regret. I'd love to see those games on my Vista system.

Planescape Torment, this is a must!

I'd like to see the System Shock 2! It's the best game ever...
...and of course the Blood. :)

Interstate'76 nitro riders
Street fighter II Turbo
many classic DOS games eg.
superfrog
soccer kid
body blows (all)
cannon fooder ( please with all bonus from amiga cd32 ver.)
settlers 1 & 2
and ofc. all lucas arts productions :)

this is making me want to get the classic games I have out and try and play them! :)

Would love it if you guys could get Neuromancer :)