wheels

[aicabsolut]

You can probably build up sub 1500g wheels for under $700, maybe closer to $500-600, but it will hard to get significant performance improvements over what you have for less than $500.

[smurfalicious]

Reynolds makes a set of semi-aero wheels called Solitudes that can be had I believe in that price range. I almost bought a set but then everyone convinced me my bike was too heavy. Boo.

[aicabsolut]

There are some affordable Easton wheels too that are pretty light. Those and the cheaper Reynolds wheels don't seem to have the best reputation for durability, but if you don't run over a lot of stuff and are pretty light, they are fine. I think chainlove used to have good deals on Eastons often. Maybe bonktown will now.