There's a crap ton of etailers. Amazon, Nashbar, ebikestop, JensonUSA, pricepoint, bikesomewhere, treefortbikes, penncycles, universalcycles, wiggle (in the UK), evanscycles (also in the UK)... too many to list and most won't have products/prices that you want.

Look here for feedback/questions on various brands/products/websites.

BTW, have you figured out what bike you'll be getting yet?