i have just started buying parts for a new build, at the moment i have, a asrock extreme 4 motherboard, XFX 650W psu, gtx460 1gb graphics card, so all i need now is a case and ram,, so what case would u recomend, that has true usb3 sockets on front and back, and is well ventelated, and is in the region of 50-60 pound ?