
Dell.com but you will regret it (the happiest day was the day I sent my last payment to them!)
John
My experience with Dell is the exact opposite. Great service and low interest rate. Got my 50D kit from them a couple years ago.
I got 2x 5D Mark II from Best Buy. They had it in stock, used the 12% off coupon and got 18 months to pay it off with no interest.