Some question though, which processor should i go for , i-5 660 or i-5 760? 3.33GHz vs 2.8GHz?
Does that mean that the i-5 660 will run faster since it has 3.33GHz? Or the extra cores will enable i-5 760 to run faster?
And any difference between those 3 cards stated above other than different manufacturer?
If not, i should just pick the cheapest one , right?
Lastly, i do need a full HD monitor for this card right?
I would look into a GTX 470, it's often available for 260$ (like the MSI version today) and often matches/beats a 5870.
Seagate has the highest rate of HD failures, and the 7200.12 series has gotten a reputation for it. Get the samsung f3.
OD: Any Sata with lightscribe.
PSU: XFX black edition 850watt for 105$ (ends soon)
Case: HAF 922 for 90$ a Newegg
Cooler: Hyper 212+ for 25$ or less, search google products.
Monitor, I would suggest an IPS monitor, but a TN is a good deal cheaper if color accuracy isn't important. On a purely gaming build a 3D monitor may make sense.
I'm with sp12 on the CPU, RAM, GPU, OD, Case and Cooler. For PSU if that deal ends (I haven't checked for it) then Corsair HX-850, TX-850 are both good. A different XFX, Antec and OCZ are also good alternative if you find a good deal on 'em.
With the hd, there hasn't been enough research or data collection to verify that the 7200.12 drives have a high failure rate, but switch to a Samsung F3 anywho if you can, since it's slightly faster (usually)
For the Hyper 212+, Amazon has it at a decent price.