Hello, well I'm about get a gaming pc and wanted to know if all the parts are compatible an if the parts I picked are sensible(or if I have lost the plot completely). also i wanted to know if it will run most games on ultra e.g Skyrim, Battlefield and I know I wont be able to get it to play the upcoming Crysis 3 on ultra but I hope it will be good enough for high settings.
Case: CiT Vantage Gaming Case Black HD Audio Black Interior
Like tiny voices said, putting a small SSD in there as a boot drive will be huge. It will speed up your system significantly.
Another thing to change is the motherboard. With that case get a full size ATX board. More importantly, I do not believe you can overclock with the H77 chipset, making the k-series part you got pointless. If you are going with a 3570K you'll want to get a Z77, or possibly a Z68 or P67, though they are last gen chipsets.
I may step up the PSU just a bit though to 650 or 700W. It will give you a bit more room for a new GPU when the time comes, just in case they are not as efficient as this generation. That's totally up to you though. A 600W will do fine for that build.
I'd say the Crucial M4 is probably your best priced SSD currently, with the 128 Gb being the sweet spot in terms of price/Gb. It also has the longest proven track record. It doesn't have the performance of the OCZ Vector or the 840 pro, but honestly it's probably something an average user will never notice and you'll pay a premium for it.