I think a little hesitation is perfectly normal for most people considering spending a $4500 lump sum on camera gear.
Agreed. If people (including pro's) didn't have hesitations and questions, we wouldnt have forums.
I'm seriously thinking of upgrading from a Canon XXD camera and want to know if those of you who have bought the 5D Mark III recommend taking the plunge.
I would say that I fit into the category that Canon mentioned below "advanced amateurs and emerging professionals".
One thing I might suggest, depending on your equipment and what you shoot, would lenses or a different body suit your needs? If you're budget is $4500, you might get more out of spending $4500 on L lenses and keeping your current body. Or, if you dont shoot a lot of action stuff, you might get more out of a 5DII and $2500 of lenses.
I shoot on a 60D personally, but my brother just got a 5DII...I put my 70-200 on there and it really did feel like the camera was finally using it to its full potential. But, if I had put my Tamron 28-75, it'd have probably looked pretty bad compared to my crop sensor. So, do you have the lenses to match a FF sensor and use it to its potential?