I dated a DKE pledge when I was a pledge. I dated a Theta Chi brother, then a AXP brother, then a KDR, back to another Theta Chi, and finally a Phi Kappa Sigma (or theta...I can't recall). Not really dating anyone seriously know, but the guy I hang out with isn't greek. Once you're out of college, I think it really isn't much of an issue anymore.
But here's to all those hottie frat boys from college!!