Peltier source?

[mw521]

I am about to try an experiment someone might be interested in. I am involved in all the air cooling techniques that I can try and have a new one I want to work on. I am planning on using ducting from a central airbox. I wish to use this as a plenum and install a filtering system and cooling. The filtering is simple and the cooling is the the challenge. What I want to try is to install some peltiers on the plenum chamber to lower the air temperature delivered to cpu, etc. I am only looking to lower the delivered temp below room temp and need to xperiment with size wattage, etc. Got to see how airflow affects cooling effect, etc. Supercooling is not what I am looking for, just some slightly chilled air w/o condensation/dewpoint problems. Okay, now my question is: Where is a good source of peltiers-cheep-for experimenting with? Power is not a problem as I plan to use a separate power supply for this unit.
Help!:p :p ;) ;)