im OC'ing this to its max 2.4(mabye 2.5), and i want to know the best heatsink(air cooling) that like 40$, i also want to know the best 120mm exauhst fan for it, also case
Zalman CNPS7000Cu is considered one of the best heatsinks available, but you need to check whether or not your motherboard has room for it. Case fans are a matter of preference, as already posted.