Tried them under Wine?
Yup, unusable! Only thing I have running decently under wine is Flash 8, Flashget and Winrar. Unfortunately that's the only thing stopping me from overwriting Windows on my laptop too, I need Altium designer 6 and MPLab
They work absolutely great under WinXP in VMWare though - If I upgrade to a Core2 Duo (w/virtualization support) as well as 2GB of ram, I can get rid of windows for everything except gaming heh

Edit: Get rid of windows as in, not dedicate a whole machine to running it