I'm looking to overclock my Q6600-b3 stepping in an Antec 900 case. Am I going to be restricted with what heatsink I can get by my case? What would be my best option?

I'm thinking I want to get to 3.0ghz w/ the processor.

Also, I just have the stock HSF on there now, but I haven't checked the temperatures. What is the best way to do so? What should my idle speeds be at?

Sorry I'm a newbie - just trying to learn.

Google speedfan & "core temp" with quotes & install & run them.

List your specs.

My Specs are:

Q6600 B3-Stepping (stock speed and stock heatsink)
Gigabyte DS3-P35
2GB (2 x 1gb sticks) Crucial Ballistix Memory - DDR2 800
Antec 900 Case
EVGA 8800gts 640mb Video Card
Samsung 500gb harddrive SATA
LG DVD writer SATA

I keep all fans on the Antec 900 running full blast whenever the computer is on. Computer stays on during the day but off at night.

I'll download those programs that you mentioned to test my current temperature. What Heatsink should I go with? I was thinking either the Scythe Ninja or the Tuniq Tower. Please let me know.
Thanks

http://www.newegg.com/Product/Prod [...] 6835185038
http://www.newegg.com/Product/Prod [...] 6835185027

These are a good start. If you have the money, go with big typhoon, tuniq tower or even ultra 120 extreme.

I'm not sure if the bigger hsf will fit your case. You can read newegg's reviews of the hsf. Just find "900".