The Student Room Group
Reply 1
Before you spend any money, check that you'll be allowed it in your room. Anything that gets hot and steamy like that will more than likely not be allowed and you might end up having to have it in the kitchen, where it's not worth having expensive gadgets.
Reply 2
http://www.argos.co.uk/static/Product/partNumber/0503002/Trail/searchtext%3ECOFFEE+MACHINE.htm
I believe my brother has this one. I'm not an expert, but it seems to work o.k, and I've never heard him complain.

As said, check and see if you're allowed it in your room.

EDIT: there seem to be some cheaper than that around, but I've only got experiance of the one above - didn't want to recommend something I haven't used!