wheels

[ilima]

I also have the Ksyrium SLs and they are bombproof. If you shop carefully, you can probably find a set of Elites for $500.

I have also been coveting Shimano's tubeless (not tubular) wheelset, which you can also use as a clincher wheel. Last year's model WH-7801-SL can be found on ebay for about your budget. The drawback is that the hub is 10-speed only, so if you're running a 9-speed set up these won't work.
http://cgi.ebay.com/NIB-SHIMANO-WH-7...3286.m20.l1116

Neuvation advertises a lot on roadbikereview. Their spiel is that they sell direct, so the wheels are cheaper. I've never seen someone complain about them and the reviews are good.
http://www.neuvationcycling.com/
http://www.roadbikereview.com/cat/wh...90_780crx.aspx

[WindingRoad]

Go with DT's... great product and reasonable price. I have the DT RR1850's and they are awesome. They are very cool looking too... so you get style points too

[aicabsolut]

What wheels do you have?

Ksyrium Elites would be no better than what came stock on my Roubaix. Maybe the '09s are a bit lighter than previous years, but I wouldn't buy them, personally.

What are you looking for in the upgrade? Losing weight? Aero rim? Stiffness? Easy acceleration? Durability?

[ehirsch83]

I would look at WilliamsCycling.com They have great wheels at great prices and he is so friendly!! Call and he will help any way he can and answer all questions you could possibly have.