I don't start till september of next year but I just didn't want to buy a computer that I would only be able to use for one year.

So I haven't actually started the application process yet (that starts in September). I'm thinking of applying to Cambridge, Imperial college london, UCL, Warwick and York. I haven't been to all the open days yet but at the moment I think this will be my order of preference:
1st. Cambridge
2nd. Imperial
3rd/4th UCL/Warwick (can't say without seeing them (but it should be easy for me to get in to warwick for a number of reasons...)
5th York (only really on the list in case something goes very wrong or if I decide I want to stay closer to home)

Some universities expect one to stay on campus for the whole course, for example, Cambridge. I'm not sure why (or if I'll be able to afford it, particularly with two of us going to university at the same time).