PI is good but can be pricey for some people's budgets.
If you're on a budget, take a look at
www.voler.com. Great stuff and great prices.
I guess you know about Nashbar and Performance so here's a few
good online outlets I like.
http://www.biketiresdirect.com/
http://www.realcyclist.com/
http://www.gottaridebikes.com/
http://www.bikingthings.com/index.html
http://www.pricepoint.com/
http://funkier.co.il/bike/Shop/
http://www.love2pedal.com/
... and the list goes on and on.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.