Jum updated his Atari 5200 emulator for Playstation 2. You can get the download from Jum’s page. A windows binary has been released too. The PS2 version will find it’s place in the PS2/Emulator section very soon.
[Update: File is now in it’s section]
AEP-Emu (DE/EN)
DMG Page (DE)
Indie Retro News (EN)
Retroguru (EN)