Yeah, Matalan is really the place to go for stuff before uni. I just got most of it from Woolworths and used my staff discount, but a lot of people I was with last year used Matalan.

Otherwise, I'll echo what everyone else said about Wilkinson and Argos. Marks & Spencer might be worth checking as well if you were looking at Habitat. I usually find the latter to be a bit expensive and Marks stuff is good quality if you're willing to pay a little extra for it.