If you go through your manual, you will find most of what you need. Such as changing settings to optimal to open up other settings...etc.. I'd also recommend browsing here,
Nforcerhq.com -asus forum. as it is a very informative board. The act of changing too many settings at once has proven to be a hinderance for some, like myself, I need to power off and restore my settings on startup when going for too many. Here's a checklist before you start overclocking:
Run memtest at every new memory speed and setting to ensure stability.
Check your mobo battery to be at 2.8v or higher. If it's not, replace it. I beleive sandra can tell you battery readings, not 100% sure.
If using multiple sticks of ram, try each individual stick and note high/low settings that work, because when in dual-channel and o/c'ing, all mem runs to specs of the weakest.
I'd flash to bios 1002.A or 1002.a "uber", as these offer the best stability.
Anything else, you will run across can easily be found on the link provided. Hope I helped. Good luck.
P.S. I wouldn't bank on being able to run 200fsb, it's been hit or miss, but seemingly miss for most.
