What Ubuntu should I install to help by testing

[Ralf]

Hi :)

tomorrow my hard disks should be tidied up.
I'll keep Suse 11.2 64-bit to see what's going on in the RPM world and
as my stable digital audio/midi workstation Edunbuntu 10.10 Maverick
32-bit (+ ubuntu studio packages) will stay.

If I could help by testing, what version and architecture of Ubuntu/
Ubuntu Studio should I install on my 64-bit AMD dual-core machine?

Please post a link to the download.

Best,

Ralf