[Meatex]

I can tell you from experience DO NOT half arse your choice of case.
It may seem like something you don't need to think much about but when you get a cheap case its makes it very hard to seat your motherboard not to mention it will be messy
Also don't skimp on PSU especially if you want to get 2 vid cards for SLI
personally I would recommend 1 better video card then you can add another later should you need it and it will be so much cheaper