A few good Rom sites are:

http://www.freeroms.com

http://www.doperoms.com/

http://www.coolrom.com/

Zelda II: The adventure of link (NES)

This is an edit for zelda II: the adventure of link on the NES. I have only just started it, and so far I have only
swapped around
some of the tiles in the fist level and edited some of the in-game data. A download of the ROM is provided below. NOTE: it is a NES ROM so you will need a NES Emulator to run it ( I recommend JNes or FCE ultra, and if your Using a Mac, MacFC.)

Click here to download the Zelda II Edit