A few of my current favorites in terms of bang for buck (recently helped a bunch of new teammates for my collegiate team buy bikes in your same price range):
http://www.performancebike.com/shop/...tegory_ID=3040
http://www.performancebike.com/shop/...tegory_ID=3040
http://www.performancebike.com/shop/...tegory_ID=3040
http://www.bikesdirect.com/products/...ce_instock.htm
http://www.bikesdirect.com/products/.../ltd30_wcs.htm
But I'm still a huge advocate of buying from your LBS, or at least going in and talking to them first.