Have you thought of eharmony.com? The radio ads sound good anyway
I would try such a thing personally if i was single at this point. There is zero shame in it. Everyone at my work and half the people I hang out with are at least late 20's, and generally in their 30's and are married. It's hard to say who has good relationships or not, because only intimiately can you really find that out, though I do know that many of them would say they do, even though certain aspects of them are things I would flatly not tolerate (and thankfully don't have to). Only one of my friends growing up is married, but the guy is an ass-licker. Of my normal friends none of them are, although one of them who is 27 in June I'm not even sure he's had sex before, and regardless of whether he has I doubt he ever will. He went through university and only managed to get limited play in his 5th year. It's kind of depressing that we were "best friends" growing up, and how he lives at home with his parents and is never going to have a girlfriend.
Anyway, that was a long run-on, multi-angled paragraph and I'm finished now.
I'd agree with the thought above about having a "decent" marriage instead of a great one. I mentioned elsewhere that I have an uncle in his 50's. Actually I think he's dead on 50. Anyway, he is retiring this year and has never married. He almost certainly never will, so he's doomed to die without the joy of children or somebody else to share old age with, except his brothers/sisters (who have their own family, so they can't exactly go visit him every night to watch tv). I wonder if he was looking for somebody _perfect_ and once he hit 40 he failed to realize that perhaps he needs to just find _anybody_! Or, it's entirely possible that all of his girlfriends just sucked.