I'm looking at a Mark iii

[piekarek]

Why is there such a price difference between the various sellers?

[hsbn]

Some sells at MSRP while others sell at street price. Stores that sell a lot of cameras can get them cheaper so they can sell it cheaper.

[chikung]

most of the time you find the best prices on Amazon - as previously said those who buy in bulks can sell them cheaper 🙂

I'd check over there if I were you

[TCampbell]

I think there's a bit of a rebate so it's available at $3200 (or maybe it was $3300) for the "body only". I've occasionally seen it a bit less but I don't think I've ever seen it lower than $2900 (there was a brief period where dealers were getting very competitive). If you see it less than that... watch out because it may be fraud.

Also... do make SURE you're getting a "USA" version (they're all made in the same place... this just means the camera was imported by Canon and not by some gray-market channel.) Canon only provides service on cameras validly imported. I'm not just talking about warranty service... even out of warranty you can't even "pay" for service on a camera that wasn't imported through valid channels.