After reading about a fellow triple enthuiast almost hitting an idiot that pulled out in front of him, I'm upgrading the front brakes. '73 was the first year for front disk brakes and although they're better than double shoe drums, they still suck.
I just scored a front disk brake set up off ebay from a '97 ex500. Just a simple bracket and it'll bolt right up.
Front caliper for $10 and the master cylinder for $26
Jeff