by =cGc=Paladin on March 9th, 2010, 1:58 pm
Well, I can tell you the ones I use that have worked pretty well. Can't give you any links to their websites, but a quick google search will work.
SNES---> zSNES- plays pretty much every SNES game
Gameboy advance ------> Visualboy advance - plays almost every GBA game. If it doesn't, boycott advance does, usually.
Playstation-----> Epsxe- This one's involves downloading the emulator and a couple of extra files for the emulator. Lots of sites will have the files together though. It plays probably 90% of PSX games, but will still have lag issues sometimes, regardless of how good your PC is. Definitely takes more tweaking than emulators for older gaming systems, but it works for a lot of games. Sometimes I use it to play my PS1 games on my PC, just because the PC emulation makes a lot of them look better.
That's all I really have any experience with. I never found a great N64 emulator, though Project64 did ok. It still did not support a large library of games. And pretty much all the NES emulators I ran across work great, so I never had a preference there.
I know you said you were looking past the 16-bit era here, but I've never tried PS2 emulation or above. If trying anything relatively new, I've stuck to handhelds such as the nintendo DS.

“Young man there was named Wong
For great justice he fought to oppose wrong
Fleet of his was big
He took off every Zig
Him to all base are belong”
~ Oscar Wilde on All Your Base

=cGc=Paladin of the Crazy Gamers' Corps
http://z4.invisionfree.com/crazygamerscorps/index.php