Go read Sheldon Brown. Your terrain, fitness, desire to expand to other terrains, etc., should play into chain ring choice - but chain rings can be swapped out. Between those two triple cranks, just worry about the bike that fits.
Oh yeah, and indysteel's advice was spot on and much more detailed than mine. The only thing is and it's only opinion is about the component cost. I tend to like more expensive -- to a point. My personal experience is that the higher level components take less adjustment. If you take care of them, they take care of you. But the others certainly function just as well and get you on the road. Again, get the frame that fits and good wheels.
Last edited by SadieKate; 11-30-2007 at 08:20 AM.
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.