Is this how you would spend $5000?
I pretty much blew $5K on a 7D system which is all on ebay as I didn't like lugging around all that heavy stuff. The Canon system was awesome but overkill for me as I just need a "travel camera" these days. I'm going Sony NEX, although I'm not a pro anymore.
If I was still a pro I'd probably go with the full-frame 5DmkII and build around that.
my $5K was split up as: 7D body, 24-105L, 60mm Macro, 70-300 USM IS, 10-22 USM ultrawide, 430 EX II flash.