The ASUS P5ND2-SLI is not a crappy board. It's not a great overclocker, but that does not make it crappy. Not everyone overclocks, and those that do have to be very careful about what parts they buy. A normal computer builder just has to check the componants and make sure they are compatible. That's easy. An overclocker must do lots of research and find out not only what is compatible, but what is compatible AND what will be open to changes and modification for overclocking.
Life is always about choices. For instance, my board overclocks like mad, but can't run 2 video cards in full SLI. Your board runs full SLI, but can't overclock very well. As everyone uses their computers for different purposes, each must be evaluated based on that designed purpose. If it is very important to you to have SLI function, you will have to go with a SLI chipset......which do not overclock well on any board. If SLI is not that important to you, then you should stay away from boards that have that feature.
You will want a PSU with strong rails and steady power to get a stable OC on any board.
Please put the specs you posted in your System Specs in your USER CP. This will automatically add them to each post, and save you time having to post them all the time, and makes it easy for everyone to see what you have.