I downloaded some emulators for:
- NES
- SNES
- Nintendo 64
- Nintendo DS

I didn't bother with the Sega side since I never had them growing up. What are some good games for those systems? I already got the Mega Man, Mario Kart and Goldeneye games. Pretty hooked on Ninja Gaiden right now too. Oh and I got an adapter from www.dealextreme.com for $5 and free shipping that lets you plug your Playstation controllers into your computer.

ah snes
super mario world 1&2
super metroid

64
perfect dark
conkers bad fur day
super smash bros

tis all i can think of right now, loved thoes games

Donkey kong
street fighters haha

nes:
1943, adventure island (1-3), bomberman, bubble bobble, contra, double dragon, galaga, mega-man (1-6), metal gear, pac-man, punch-out, rc-pro-am (1-2), space invaders, tetris - my favourites

n64: starfox, goldeneye, mariokart - my favourites

NES:
Mario Bros 1,2, and 3
Zelda II: The Adventure Of Link

Snes:
Zelda III: A link to the past
Mario Allstars + Super Mario World
Earthbound
Return of Double Dragon
Top Gear
Top gear 2


N64:
Ridge Racer 64
Goldeneye
Perfect Dark
Rush 2: Extreme Racing USA
Tony Hawks Pro Skater 1,2, and 3


i miss those days

Dropped it, got it. Loved playing that on the Merry-go-round as a kid.

nes:
Contra
Super Contra
Skate or Die
N.A.R.C.
Ninja Turtles 1,2 and 3

snes:
Base wars
F-Zero
killer instinct 1,2 and 3
mortal kombat 2
Street Fighter 2 turbo

i actually just dl'd a torrent of ~750 SNES games, its every SNES game released in north america.

Sweet, been playing some of these games over the past week. Super Smash Bros. is pretty good too! I've also been playing a lot of Frets On Fire, way better than Guitar Hero with custom songs, plus all the Guitar Hero and Rock Band songs too. I got over 3000 songs for it now. I also installed Performous, kind of like Singstar for Playstation, amazing for drunken parties.

im not sure if any of you guys use a mac, but this is a killer site with very easy to setup and use emulators for all systems, and the downloads of games are instant and easy. im not sure if you can find stuff for pcs on here but i know its killer for a mac. check it out..
http://www.coolrom.com/

It's all the same, I use CoolROM to get some of my ROM files and I'm using Linux for everything. This entire site was developed on my Linux box. The only difference is the emulators that either run in Windows, OS or Linux.