well I wasnt trying to be scientific about it and was going by the OP which claimed the case was ghetto and needed better airflow.
Fair enough. It isn't that your conclusion is 'bad', it is just that I reacted to "Must be bad air flow" as if you nailed it. And, maybe you did. If you have bad air flow in your case, you will perpetually gain heat. How much and fast would determine just how bad the case air flow is. I just think that people are way to sensative over 'heat' when 10 degrees between cards is probably normal, not to mention the ambients make all the difference in the world.
People were convinced that those of us who were running our Q6600's at 3.6Ghz and 1.5ish volts were going to destroy them in a matter of months. I still have two rigs running those things, with the same extreme overclock going on 3 years now. I also have not heard one person say "My Q6600 died on me"... Of course, I am sure it happens, or has happened, but it is just a scare tactic.
The advice in this thread is good... But remember a few things
1) 80c is just fine for his card.
2) With more air flow, comes more dust, and more maintenance.
It is all fine and dandy to get a tornado worth of air going through your case, but it doesn't take long (a mere week or two) to clog it up with dust. There is a downside to everything, not to mention the noise from opening up the case to bring more airflow in.