Finally made the leap to Ubuntu on my main machine! Took a bit of work to get my 7600GT to play nicely and get my 1680x1050 resolution, but it was all worth it. I'm free from Microsoft's grasp!!!!
Impulse666, if you have trouble reading your panel text due to colour then you can change it via a custom .gtkrc-2.0 file. Just do a search on the Ubuntu forum, there's loads of threads and examples.