I would definitely agree with going with Austin Homebrew.
They have great equipment, are incredibly helpful, flat rate shipping and get things in the mail super quick.
Last time, I ordered on Wednesday night *late Wednesday night* and the package was on my doorstep by the time I got home on Friday. Granted, I live in Texas.
Also, you should check out Midwest Homebrewing Supplies (http://www.midwestsupplies.com). I've never ordered from them, but I've yet to hear a bad review of their service and/or products.