If you want to overclock, and are looking for a good, cheap-ish, reliable, and overclockable board, i would go with the GIGABYTE GA-P35-DS3R. I can say from experience that it is a great board. I am using it now As a matter of fact

as for the processor... NUUUUUUUU. bad gaming processor. If your on a budget, get the Intel C2D E4500. Its faster, and has more L2 Cache. Case looks good.
CPU cooler is AWESOME Graphics card is good too. As for the Memory, i would go with Crucial. It is IMO the best out there. And i wouldn't get that power supply. Never buy a
PSU by a cheap brand. Go with Antec, Enermax, OCZ, Thermaltake, or Corair. Personally, I recommend the Enermax Liberty 500 watt.