Mesen - Mesen is a NES/Famicom emulator and NSF player.
WinUAE - WinUAE is a Windows port of the emulator UAE.
Nestopia - A portable and cycle-accurate NES emulator written in C++
Amikit - AmiKit turns your computer into legendary Amiga.
VirtuaNES - VirtuaNES is Famicom/NES emulator for Win32.
Amiga Forever - The official Amiga preservation, emulation and support suite with games, demoscene, history and culture.