Should I stay or should I go?

Guys, I met this girl named Kim on myspace, and I like her(we've been intimate) but I'm not "feeling it". I made up my mind when I got divorced that I wasn't going to settle, and I know that if I stayed with her, eventually I would be settling. It's not that she's not pretty, she is, but I want a "damn" girl. You know the kind of girl you see walking into the store or something and you say to yourself "Damn!" I met this girl named Lori on Yahoo! personals and we talk a bit and stuff and we seem to have a lot in common. My question is should I break up with Kim and go for Lori, even though we haven't met yet. Oh, and I'm not going to cheat on Kim! I had that happen to me, and I know how it feels! I would never want that to happen to another person, especially someone who considers herself my girlfriend.