2 reviews of the best cases under 50$ (or around that)
I would recommend the Antec Three Hundred That seems to be the best case for a budget and I heard its pretty decent to build in the only thing that you might want to get is some extra (cheep) case fans to keep it cool.
[...] ,2707.html http://www.tomshardware.com/review
i really cannot recommend the Antec 300. its a slightly outdated case with no cable management options(which why v2 exists, even still its a bit pricey for what you are getting)
doing a very quick run through of cases, teh case you picked is a usable choice, others on amazon.uk would include some of Aerocool's models as well as the bitfenix shinobi.