I dated one for almost four years. It was...interesting. I muffled her goth-ness a bit when we were together, but she's even more "goth" now...and a stripper. Great sex, but horrible break up. She had eyebrows when we dated, too. I swear. We were TOO close to marriage...scary.
i'm a goth. most goth chicks are quite openminded, just like hippie and punk chicks are. i think you would be well off if you dated a goth chick. some goths, just like some hippies and punks, have some major bad shit going on in their heads but, you find that with a few people in any group. just don't rule out dating a hippie or punk chick either. you just might find a cool "soulmate" with one of them too!
since i see your in ohio, if you live in or close to any of the major cities there; that would be the best place to find goths. check around the colleges and were the underground shit goes down in those cities. most likely that is around the colleges. that is were you will find most of the "weirdos" as, the norms call us. also, try the internet. go to google and yahoo! groups, and enter something like 'goths in...' go to google and run a search for goths. try the open source diretory project and enter a search under goths or subcultures. that should be enough to get started in finding a goth girl.