Stalingrad
Hi,
I really can't see how the capture of Stalingrad would have affected the outcome of the war all that much. 2 previously mentioned points come to mind:
1) The Axis had definetely bit off more than they could chew. Once the Enigma was broken, Stalin and the other allies had a much better picture of what the Axis was up to
2) Lend-Lease was equally, if not more important, than reason #1. My grandfather managed a factory in Michigan which shipped tanks and trucks to the Soviets, via Murmansk and Anrchangelsk. The USSR had supplies coming in from their west coast, Persia AND the Barents Sea. If the Axis had cut the supply lines from the Barents Sea (Operation Silver Fox) AND the Persian supply lines, the USSR might have been in pretty serious trouble.
Just my 2 cents worth