Finally decided on the light situation... bought the PIAA 2100XT for the front air dam as a driving lamp. works very well..
also bought a pair of the PIAA 510 FOG, and will be installing in the stock fog light location.. the stock housing is 3 4/5", and the piaa w/o the cover is 3 15/16"... ill make it fit...
Look around on ebay, I picked up a new set of FF100's for about 60 bucks with shipping. I'm planing on putting them in the air dam like you are talking about. Hopefully the get here soon.