So yesterday I got a brand new PSU (XFX PRO550w) and an MSI R9 270X and everything works great...except now I can't close my case because they take up too much place. So, I have to get and I want a new case. My computer (except for the switched out psu and added gpu obviously) is this one: http://h20565.www2.hp.com/portal/site/hpsc/template.PAG... I've taken a look at a few cases on NewEgg already http://www.newegg.ca/Product/Product.aspx?Item=N82E16811133223 http://www.newegg.ca/Product/Product.aspx?Item=N82E16811133220 but I don't know much about what I should get or what is compatible except that my motherboard is uATX but I obviously don't want an mATX case. Also would it be difficult to do it myself considering changing a psu was pretty easy? Also, I have to mention that my room is kept very cool and I live in the North of Canada so needed much better cooling isn't that big of a deal. Finally, I need at least 7 free USB ports (not necessarily 3.0) for keyboard, mouse, webcam, wireless headset, headset charging wire and a USB key when needed. And I need at least 2 of the 7 in the front of the case. I also will be eventually buying a new motherboard, PSU and adding another R9 270x as well as adding an SSD. Thanks!