Looking for a case for my pc because I just got an MSI Twin Frozr R7870 OC Edition and its running so hot that I have to keep my side panel open ( btw this is not the card, it is the case that isn't cooling it at all because I only have 1 fan which is blowing air of the cpu...!). I have a budget of 100 pounds and I have been looking at the nzxt phantom, nzxt 410, antec nine hundred and some other cases!
If possible I like cases that have the blue led fans and a pretty cool design, and a side window!
Support for atx motherboard
Space for a MSI Twin Frozr 7870
Space for a Cooler Master 212 Evo+, going to buy 1!
Good Cable Management
As far as cooling performance goes, they are all great, but the Silverstone Raven will be quite a bit ahead of the pack when it comes to GPU cooling, because of its unique design, while the Antec P280 will be the quitest.
Kamen_BG also showed you some links with very good cases...if i were you i would go for the red nzxt...i personally have a coolermaster haf x,and i'm very happy with it..all the cases mentioned above will give you a very good airflow/cooling.
I have the Corsair 400r and it has some nice cooling features. The entire front is filtered mesh, which is nice. It also comes with three fans installed (2 front 120mm, 1 rear 120mm). It doesn't have a side window, but there is space to mount two fans on the side panel. The cable management on the case is also superb. Most of the Corsair cases are on sale on Newegg at the moment and come with a 16gb usb 3.0 flash drive.