I am using Kubuntu too
I tried Ubuntu but I prefer KDE to Gnome.
K/Ubuntu was the first Linux distribution I have tried that picked up all the slots on my USB card reader (not just the first one) and the first one that printing to a USB printer on my GF's WinXP box worked on
Installing was painless too!
I have been able to make almost a complete switch from Windows now.
OT: Does anyone know of a good digital photo management app for Linux?
Specifically one which allows 'drag and drop' tagging of images with keywords and susequent searching on these tags, such as
this one?