Pay no attention to the asshole behind whoreable, xmaslights. I kan't really link you, but try jotting this in the search box:
http://www.jaccinc.com/emulation/rom_index.shtml. there will be an emulation menu. If there isn't on, try games. You can download almost every emulator than you could dream of. They also have a HUGE collection of ROMS. You'll love it. I know you will. ^_^