As for a good place to buy one, I've dealt with Mastro since I moved here 4 years ago, and I've never had any problems with them, and feel that they are a good dealership to do business with. Others on this site have differing opinions, but to me, I think they do a good job over there.

But I agree with Boost Junkie, go to Nasioc and read up on them, and wrxfanatics.com is another good site with a lot of info on WRXs and Sti's, and even some Legacy and Forester info, if that is what you might be looking for.