www.bikeisland.com For framepump and multi tool. Topeak Road Morph w/Gauge 35.00 Park MTB-3 Multi-tool 20.00 No shipping
www.rei.com Delta Mega Rack Super Sherpa 15.93+ shipping. Superb product.
www.pricepoint.com Sette Glo HL 10.00 Sette 316 blinkies 10.00 Get 3. 2 for mounting on rear and 1 to carry in tool-kit if needed. These are 'be seen' lights. For a really good 'ultra-blast' taillight the Cygo-lite Hot-Shot is 40-50 dollars and is re-chargeable. Don't have one myself, but it's my next commuter purchase. The reviews are really good.
www.nashbar.com Niterider Mi-newt 150 Cordless 70.00 +shipping. Great light for the money in case you commute in the dark.
www.biketiresdirect.com for tubes and tires. Free shipping after a certain dollar amount.
No1mad mentioned several. All have good reputations on the Commuter sub-forum. If you get on their e-mail lists you will be alerted to closeouts, special discounts, etc. It's kind of like going to a thriftstore...one has to go back a few times until running across that 'sweet deal'. Just have to be patient.
Btw, I buy
everything online in knowing what's needed for my bikes ahead of time, usually.