I got inspired to post this after reading the RockAuto 'supplier' thread. I price comparison A LOT before buying auto parts and I have found recently that buying online from Advance Auto Parts gets me HEFTY savings. A month ago, I paid $67 on a $97 battery, and just last week I priced some rebuild parts for my 7.5" Ford differential, and it cost me $97 shipped to my door when I would have paid over $120 at RockAuto (RockAuto's shipping price is sometimes too high for my taste). My father has even purchased multiple items with multiple online orders, while picking them up at the same Advance Auto location at the same time, to take advantage of their online coupons.
Just google 'advance auto coupons' and you will find some doozies:
http://www.retailmenot.com/view/advanceautoparts.comhttp://www.bestonlinecoupons.com/coupon ... -parts.asp
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In the planning stages for my mid-engine BEC
My CAD model sharing Wiki:
http://locostcadfiles.wikispaces.com/