I was working this out on the weekend. I thought it would be cheaper and I planned on using the Duemilanove to help bootload the chips. once the chips are bootloaded i planned on using the ftdi cable to program it.
However when I was pricing it out, it did not work out to be economical. It is way cheaper to buy a RBBB from moderndevice.com and an easybub to help transfer. Using digikey as a supplier, all the parts I would need were coming up to 13 bucks, the RBBB is 11 bucks. Plus the shipping is cheaper. Plus it comes with a nice compact PCB so I don't need a breadboard with a plethora of wires. Plus the easybub connector is cheaper than the ftdi to usb cable.