You could also get an e6300 for $12 more at Newegg and an Asus G31 mainboard that you can use to take the e6300 to 3.5 Ghz on a 1333 fsb (versus 800 fsb on the e5200). If you try to push your e5200 past 3.3 Ghz you'll be close to the limits on it max vcore around 1.37 to 1.4 which is something to avoid.
I paid ~$50 and it hit 4.0ghz(12X333; 1.437v) on mine below. Seems like I could even go higher, but not recommended(had it at 4.2 for a while, but stability issues and a fear of higher voltages kept me at 4.0).
thanks i ended up going with a e8200 and i have it clocked at 3.6 stable. max temp on load is 50 Celsius. i would defiantly get 4.0 with better ram