Temp. monitoring software?

is there a good program/utility i can use to check my case,cpu, or other temperatures?

my computer has been BSODing lately with a lot of 3d games (even with winxp :( ) and i think heat might be the problem

thanks

i like mother board monitor u can get it here
Sisoft Sandra will also display temps u can get it here

MotherBoardMonitor is the most widely used product out there. Its over 90% accurate and reliable. Be mindful that particularly in some Asus mobos MBM can vary quite a bit from what the Asus Probe is telling you

I've used 3 utils. Motherboard Monitor was great, but doesn't want to work with my current board. I tried the bundled temp monitor with my Soltek and it sucks. Now I'm using HMonitor and it's actually right on par with MBM.