Thanks to the strobist site, SB-24 to SB-80s are much harder to find. If you do find them, they are overpriced and used HARD and a LOT.
I thought about it, but in the end, decided to get 2 new SB-600s and I could not be happier. I also just may get 2 more SB-600s in the future. I am just that happy with them!
As far as triggers go, I decided to get the Gadget Infinity triggers. I am getting 5 receivers and 1 trigger DELIVERED for less than the price of a single Pocket Wizard. If I need more, I will get the Radio Poppers. As soon as the transmitter is out of the box, I plan to test range, then do the antenna mod and test range again. Many people are claiming 150-200 foot ranges, wich is WAY more than I could ever envision myself ever needing. I also plan on doing the AA battery mod on all receivers.