I installed Ubuntu last night on my desktop, and I must say it went fairly smoothly I just have 2 major issues.

1) 3d support on my nvidia drivers don’t work for some reason.
2) Takes to long for XMMS and my External HD to respond.

Other than that things are running great. The mono support is awesome. Quite a few things work much better over suse. I really do like it, and so far am glad I made the switch except for the 3d support.