I use http://www.performancebike.com for nearly all purchases. Great prices and a lifetime satisfaction guarantee on everything they sell. Makes all warranty issues moot because if a product EVER fails they'll refund your money or replace it with no questions asked.
They also have a buyers club which costs $20.00 per year. That gets you free upgrade to FedEx 2 day shipping, a %10 credit on every purchase and access to special sales. For me it's a great deal.
A forum community dedicated to Road Bike owners and enthusiasts. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, troubleshooting, maintenance, and more!