Cool, thanks for the advice, I'll get on it.
My girlfriend and I usually have the argument about Mac v PC. She points out that PCs are prone to virus's etc. and I point out that Macs are over-expensive fisher price computers for pretentious people!! haha. I would just like to run some spyware tool etc on it to be on the safe side.
She also liked watching me run the spyware software on my PC as she liked all the little 'bugs' it found and the pictures of the critters!! Girls!!