Long's Cycle
It's not the prettiest web site, but Massachussets bike shop Long Cycle has some pretty good deals on bicycle clothing and bags.
http://www.longscycle.com/Directory
clothing
20 May
20 May
JANDD
JANDD is a great source for all kinds of bicycle bags, panniers, racks, clothing, seat wedges and more.
http://www.jandd.com/bikes.asp
20 May
Vintage Velos
Classic jerseys, wool clothing, and vintage racing parts. This is where you can get all the Molteni kit.
http://www.vintagevelos.com/index.html