hey. im building a new computer for gaming,internet,and the whole package basicly. im curious if these parts are all compatible and if there is anything im over spending on. thanks for reading and helping
im also looking to upgrade to a i7 in the future.
My biggest concern would be CPU/mobo comb. The B75 mobo is an entry level business mobo, not ideally suited to CPU. It will work (sort of), but is not capable of using half of CPU's capabilities. Having said that, I would recommend the more up to date, and slightly better i5-3570K processor, unless the 2500K is SIGNIFICANTLY cheaper. 3570K should be matched with a Z77 mobo. If you stick with 2500K, you should ideally use Z68 mobo.
2500K only natively supports up to 1333MHz RAM. The 1600MHz RAM is fine with the 3570K.
Are you intending to add 2nd GPU, in future. If not, you don't need 750w power supply. If you do, mobo needs to take that probable expansion, into account.
OCZ are having some "corporate issues" at present, so not sure I can wholeheartedly endorse any of their products, at the moment. In any case, I would suggest changing SSD to Crucial M4, or the slightly better Samsung 830.
Graphics card is OK, but you can do better, at similar price.
You will need an aftermarket cooler, for CPU, if you plan to overclock. You shouldn't need extra cables, with decent components. Case?
If you let us know your max budget, could probably put a better combination, together, for you.
If you have local Microcentre, and can stretch budget slightly, this would be much better. If not you can always use your original HD6870. Not as good, but not miles behind. If you definitely want 2nd GPU, in near future, you should probably get 750w PSU to allow for it, which would stretch budget again. Mobo is fine for 2nd GPU, so that's not an issue. PCPartPicker part list / Price breakdown by merchant / Benchmarks