The chain on my commuter (a rather old Nishiki touring bike) skips pretty badly, so I'm planning to replace the crankset, cassette and chain. First up, a new triple crankset. I've got a maximum of around $100 to spend, preferably including the BB. I'm considering these:

FSA Gossamer MegaExo

Shimano Tiagra FC-4603

Any thoughts or advice? I've also done a bit of searching on Ebay, but so far nothing there has jumped out at me except, perhaps, for a Campy Mirage. The Campy would probably be over budget especially since it would not include a BB.