http://www.performancebike.com/webap...00_20000_64507
^ buy a pair of those for every bike that needs pedals, you would have to buy 4 sets to come close to the price of the DA pedals. They are 330 grams, as opposed to the 278 of the DA pedals. I have them and I have no complaints, although I have never used a "higher end" pedal system. Plus, they don't look too shabby.
Switching pedals would be a PIA imo.