I don't see employee pricing, but there is a rebate of $4500 in effect from 11/19/08 to January 09 for *2008* models. They are clearing those out. The rebates on 2009 are only $500, so at the prices you mentioned you must be looking at 2008 models.

If you are shopping for 2008 models, that would explain why they only have a few or there are none there when you get there. They can't supply a substitute easily if this is a 2008 - they may not have a 2008 to trade with another dealer for the truck you want. As for varying prices, it may be that one dealer was able to discount more off the MSRP before the manufacturer rebate.

I hope you are able to find a truck that meets your needs.