I just bought a 2010 Cannondale Quick 3 today (specs: http://www.twospoke.com/forum/f124/c...3-2010-a-3185/). It's my first *New* bike and I don't know much about all the fancy components. While I *should* just love the bike as it is and get to know it on the road, I'm a tinkerer...I'm already thinking that I should have some bar ends for the hills, and I'm wondering how good these gears are...they hiccuped on me a couple times today, but I can't rule out that it was my fault. Still, I'd like to know which components are the best targets for the upgrade bug. I dunno these brands, or in the case of Shimano (everyone knows them) I don't know how these particular components place in their lineup. How can I tell? Is there a weak link here that I should be thinking about if I can't resist upgrading something?