Since NH is now $100 bucks I would get the Florida one first... $117, yes, you can carry in Florida with your S.C. permit but as mentioned above Florida gives you some other states as well over PA. I'm kind of off on N.H. I had the permit and then failed to renew it in time... they actually were nice enough to send me a renewal notice and bill for $20 and then when I sent it in the law makers up there had changed the price to $100 during the two weeks it took!
Unless you are going to N.H. no reason for the permit... and I'm much more likely to be in Florida, GA, AL, or MS than I am in NH.
If you need to go cheap and just want a easy fix for GA. then go with the PA permit from Centre County... you can get this in about 2 weeks via mail..... but some time in 2011 this all changes and PA is not going to allow non-resident permits to be issued by mail.