EVERY case containing a tbird IS provided with atleast the PSU fan exhausting, and a fan intaking cool air
What a load of utter bullshit. Firstly, a PSU fan is not what I would class as a case fan hence why it's called a "PSU" fan. Second, very few standard pre-builds come with an intake fan - I'm not talking about a specially made PC, i'm talking about walking into your local Pc World or similar store and buying a system of the shelf - you'll find that the vast majority don't come with an intake fan of any kind.
. The reason your air would be hot is because the heat from your processor is being trapped in the case
OK, this is where your lack of knowledge shines through, so I'll make it six-year-old simple for you.
<b>YOU DO NOT NEED AN EXHAUST CASE FAN FOR HEAT TO ESCAPE FROM YOUR CASE</b> As Wesley pointed out, unless your case is completely sealed it is possible for the heat to escape without such a case fan - the PSU fan being one source.
The simple fact remains, at this very moment in time as I type this message, I do not have an intake fan installed in my case, I do not have an exhaust case fan installed. I have no fans or cooling equipment except for the Zalman CNPS3100, a 80mm Delta Screamer blowing onto the Zalman, the Northbridge chipset fan on the Abit KT7a, the chipset fan on my GTS - similar to a Blue Orb, and the PSU fan - that is all the cooling products in my system so lets check the temps... ooohh, look at that. A 1Ghz T~Bird @ 1333Mhz (133*10) and system temp is 26c, cpu temp 26c (pretty much idle). Now I couldn't care less if you believe that or not, i know what temps I'm getting, I'm happy with them and I'm happy with the cooling in my case just now so i'm gonna leave it at that...
Bye Tempus, good speaking with you - it's been a, how should I say... an eye-opener for me...