What To Look For In A Sailboat

Don't flame me for asking about sailboats on a car site but I have been looking for a boat in the 30' range for a while.
I half assed learned how to sail in 1977 so I'm not a total newbie at it. And I would take some ground classes to learn as much as I can too. The wife says there is no way possible she's getting on a boat with me again so I might have to work on her a while longer.
Anyway, is there anything I should look for myself on a used boat before I pay for a survey on a boat? There's a lot of boats out there and the newest ones I could afford were built in the 1980's so they have a lot of use already.

ONE THAT DOESN`T LEAK ------------Someone might have beat me to this , didnt read all the posts lol