Reading the laptop suggestions thread I noticed Martin say his PC was modified to look like OS X. I am in line for a new laptop so will be looking at getting an ibook with tiger (I wanted a class full of G5's but we haven't got enough money now 
)
I found this list of apps that I can play with on my PC:
http://features.engadget.com/entry/8828351836181248/
Anymore?
Darren