I do know of one excellent sight that sells good air cooled peltier parts.
Jump on over to
www.swiftnets.com
This sight has so very good peltier coolers, except I would research a lot about the thermal output of your processor. (Power used by the processor is converted in thermal energy.) For example, if you were to buy a 78w peltier kit, first you need to see how much power your processor consumes. The peltier cooler can only cool your processor depending upon the capacity of the unit and the amount of power consumed by your processor.
**This is also important. You need to find out how much power the processor will use when it is overclocked.**
I have a Duron 600 with a Swiftech MC371-3 peltier cooler. I have it set to 900@1.675v. It runs on average 26 deg C. I had to remove the default fan because the unit is so tall. I can reach a GIG, but the temperatures soar to 40 deg C.
I hope this might have cleared up so things.