Fingers, a keyboard, perhaps a monitor. :D
You can get an in depth answer in the overclocking and cooling section, but I would suggest trying to hit 250fsb with a 5:4 divider so your memory can run at ddr400 speeds still. You might have to give your vcore a little bump though, make sure...
Maybe 65c at most and that is if its texas hot outside, i'll have to double check that cause i'm not totally sure. Might be a few days though, no video card and i'm too lazy to put the system back together with an MX.
Parabellum, check your pm, sorry about that!!!
The cooling was a Gigabyte 3Dcooler with AS5, which isn't the best cooling solution but it worked fine for me. I'm about to go vapochill but i'm getting a better heatsink today cause I got paid :D As for why it runs so cool, this might be just with the ES's, but the cpu boots to 1.36v default...
Fly low on the radar and they shouldn't care. IMO it would be a waste of time and money to bust someone for selling a few ES processors. If they started dishing out a ton of them on ebay I would understand.
What kind of temps are you getting with the stock cooler? I was using a gigabyte 3D Cooler cause it was the only 775 hsf I could get at a local store and my temps were around 39-42c idle. My experience with the new E0's is that they run way cooler. My 478 prescott had about a 10c higher idle.