I bought a Trek Triton a few months ago and my head's gone all crazy with upgrade fever. I'm toying with a zillion ideas--all of which are ill-informed and few, I'm sure, will work. I'm tempted to upgrade the brakes (the stock levers and brakes feel pretty chintzy) and I'm wondering what I'm looking at with all this stuff. I was offered a good deal on Ultegra 6700 front and back brakes but I'm feeling a little crazy for two reasons: I'm riding a singlespeed bike and a lot of people seem to toss the back brake anyway, and it looks like I would need to buy new levers. The matching levers are friggin' expensive, I have no idea if cheaper levers are compatible and I have no use for the built-in shifter on a singlespeed. I'd like to upgrade the brakes and I have the money to spend, but it seems like I'm maybe overstepping myself.