Yes you can. Look up the wiring diagrams for either Fulham Workhorse or IceCap 660 or 430 ballasts and any of them show you how to wire either one. You could also buy adapters like in this ebay auction here, it has expired but you could contact the seller.
http://cgi.ebay.com/Aquarium-power-comp...
The Spectrapure ProPlus found here for $149 is the best value in a reef quality RO/DI today.
http://www.spectrapure.com/email/custom ... ion.html#1
My second choice, and probably the only other vendor I would consider is the 75 GPD Premium from Buckeye. Russ is a great guy.
