Bingo. I need to be able to take it to and from college and right now I have no idea where I'll be staying in the future.
Also, I'm really not a fan of macs. Not going to go into why...
Thanks you very much for the advice, everyone.
EDIT: I think I've made my choice:
http://cgi.ebay.co.uk/SONY-VAIO-NS20ZS-15-4IN-LAPTOP-CORE-2-DUO-WIDESCREEN_W0QQitemZ360151566038QQcmdZViewItemQQptZUK_Computing_Laptops_EH?hash=item53dab4c6d6&_trksid=p3286.c0.m14
Shall I go for it? Is there any reason I shouldn't?