I was in my local Costco Warehouse the other day and they had a whole display of D60's. I don't remember the cost, but it looked like a good deal. B&H, Amazon, and Adorama are all good on-line sources. I wouldn't buy a camera on Ebay.
I got mine at Sam's Club. At the time I bought it (early March), it was the best price out of Best Buy/Costco/Amazon. I've never ordered through Adorama, but I've heard nothing but good things about them.
I tracked prices for about two weeks before I bit the proverbial bullet and bought it.
i've bought from all the listed online places and J&R as well. never a problem at any of them. ebay never seems to have great prices to me. ( from their "buy me now" prices) so personally i won't risk it