Emulators ports for PS2

[Shmo]

Does anyone know of any good emulators for nes, snes, neo-geo, etc.. that have been ported for PS2.

[psx_paul]

Sega Genesis/Megadrive
http://pgen.gamebase.ca/

Super Nintendo
http://snes-station.emuunlim.com/

Sega Master System
http://psms.gamebase.ca/

NES (originally for PSX)
http://imbnes.gamebase.ca/