dreamcast emulators

[Chankast]

Win32 :: First Dreamcast emulator to play commercial games! BUT (and that's one big BUT) to run most of the games well... you'll need a 2GHZ processor.

[DreamEMU]

Win9x :: Currently shows the Sega opening screen and runs some demos.You can download demos on their site.

[Dreamer]

Win9x :: This is the first attempt at an emulator for the Sega Dreamcast, and only runs several demos, which can also be downloaded on their site.