In my opinion declawing a cat is wrong because it's a form of amputation. They don't just cut out the nail, they amputate the first joint of EACH toe. It's very painful for cats. No one should get a cat if they don't want it to scratch, that's what they do.
Also my opinion, there's been numerous discussions/debates about declawing on this forum. You can do a search for declawing and see for yourself. I don't know if another declaw discussion is such a good idea when it's already been done.
Here's one that was pages and pages long.
http://www.pets.ca/forum/showthread....ghlight=declaw