DAMN!!! $125!!! <-- way too much.
In my opinion, you can buy just about any battery (Correct physical size doesn't really matter that much, you'll just have to mess with it more. CCA and CA are really the only specs you need to be worried about.) with a warranty on it and it'll work fine. (As long as you aren't running a giant amp/subs combo.) I went to O'Reilly's and I think I got one about two years ago for $75. I haven't had any problems since.