My Mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131232&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-NA-_-NA-_-NA
Hmm the only software I could suggest would be ntune from nvidia which is part of the nvidia control panel that can be added. I have never used it though so don't know how good it is.
Looks like that mobo should have come with precision tweaker 2 software. If you don't have it any more you could probably torrent it or download some other windows based (I'm assuming) programs. I haven't ever used ntune either so I can't comment on it. I used speedfan or softfsb back in the day, but I have no idea if they support your mobo.
I highly suggest you just do it via your bios though. Some software shows different numbers than your bios and it can be a hassle. Oh, and if its your first time, please read a guide or something before you dive into it.
I'll do the bios. Other than changing the clock speed on the CPU, do I have to touch anything else?! ...
You don't have to... but afaik, you rarely touch more than the clock bus anyways...
For that kind of overclock you're going to need to do quite a bit. At the very least you'll need to adjust memory timings, memory voltages, and CPU voltages (Vcore, I think?) I'd try to cover most of it myself, but that would just be way too much to cover.
http://forums.anandtech.com/messageview.aspx?catid=28&threadid=2057083That should cover everything you'll need to know for overclocking.
The basics of overclocking are essentially this: Slightly overclock, check for stability, repeat until unstable. Increase voltage. Slightly overclock, check for stability, repeat until unstable. Increase voltage. Continue doing this until your desired overclock speed or you're unable to continue due to instability, temperatures, etc.
You'll probably need to change your memory speeds and timings to keep up with your processor overclock, especially if you're going for a large one like that. Make sure you have a quality PSU that can handle the increased power requirements of an overclock/volt.
Anyways, this is not an easy (actually it's fairly easy once you get the hang of it) or short process. It takes time to check for stability (hours of running prime 95 and other programs), and skipping these steps may prove fatal to your processor. However if you follow the general guidelines of overclocking you should be ok. I can't stress enough that it's important to not just take someone elses overclock settings and use them, no one chip is the same. With all that being said, if you need any help feel free to ask. Good luck on getting your desired overclock, and if you do post your results. The Q6600 is usually a great processor for overclocking, so I'm interested to see what you can get on it.
Edit: About that fan, it looks good. I'd have to do some research to really find out. The most important thing is to make sure you apply the thermal paste correctly.
Edit2: Shouldn't you just encode a workraw to time on? Using flac audio/whatever video bit rate you have seems a bit much for timing. Then you shouldn't run into any issues with skipping at all.