qunatmusheep, I read that the sweet spot for the E7200 is 3.6 using DDR2 800. Anything above that did not return much extra in regards to additional gaming performance. I would be curious to see how high you can over clock it as a lot of the sites I read were able to get it to 3.8 on air. So water cooled you could prob get over 4 but how much more I could not say........
I've built many e7200 systems and usually you can get 3.8 on good air but you need up to 1.4 vcore. Sometimes higher depending on the chip.
3.6 can be achieved on the stock cooler with 1.3 Vcore with idle temps of 39c load temps hit 69c.
I've had a couple stable 4.0s air and water but after 4.1 it gets all crazy no matter what.
Most e8400s wont even hit 4.6 stable. If you want a good chip to play with wait for the e5200 with the 12.5 multi. It will hit 4.0 with 320FSB. I see some major potential on this chip. Its supposed to release in Q3 which should be any time.