But for people who are looking for a simplistic look, here's this:
@ Football Maniac, I have never tried a NES emulator before. I can, however, vouch for ZSNES as a good emulater for SNES gaming and Visual Boy Advance for Game Boy playing. If anyone has good experience with a NES emulator, please share with us. Luckily, my NES still works and I use Homebrew on my Wii for games I don't physically own.