Thanks for all the info, guys. I'm planning on watercooling soon, so hopefully I'll see better results. As for ambient temperature, it's been a really hot week, but today, it's all cloudy, so I'll do some temperature testing today and post my results.
As for thermal paste, I used the one it came with: Thermalright Chill Factor. Not Chill Factor II, by the way. Just the normal ghetto one =[
I guess I could try remounting the HSF. I also have Tuniq TX-2 thermal paste. Should I use some of that instead of the Chill Factor stuff?
As far as case cooling goes:
I've got 2 in fans near the hard drive cage, 2 out fans at the back, as you can see, another exhaust fan at the top of the case, and 1 more in fan on that swing-door thingy (I broke the other one off because the TRUE was too fat lol).
They're all 80mm fans, if I remember correctly.