I recently bought this one...
http://cgi.ebay.com.au/ws/eBayISAPI....=STRK:MEWNX:IT
...for under $100AU
A Manfrotto copy, but price was good and it'll handle a 10kg load (in theory) - I know for certain that it handles my 40D and 400mm f5.6 with ease...and the 40D is cooled so it's carrying an additional 500g.
It should carry your 40D/70-200mm with ease.
Comes with a soft carry case.
Cheers
Doug
EDIT: Should've read thread completely, as suggestion now academic!