macs rock, I used a mac for years, then along came sketchup and my mac was too slow to run it.
I probably should have searched out a used mac, but ended up getting a pc. They are just so damn cheap for a used machine, under 1000 I have a 2 gig processor, and 23 inch and 21 inch dual monitors.
Just have to reload the operating system every other month, as windows seems to constantly collect crap.