It was too slow to do anything and was going to throw it out and buy another one, but then realized all I had to do was run an antivirus - apparently my antivirus subscription expired in 2008 !! Now that I've cleaned up my system, its pretty good.
I love the look of the mac, but can't stand how all the shortcuts are so different to all my PC shortcuts (especially for work).
Other than my Lenovo X61, I have another 2 Lenovos (they're so sturdy and reliable), and an ipad. I'll keep the current configuration for now until some other computer breaks down.