Question about buying a Condo really CHEAP!?

Aiight, so I was looking on this website called homes.com. Seems pretty decent. And I see all these nice condos, 3 bedrooms, 2 baths, in the Marietta, GA area REALLY CHEAP. (Marietta, GA is the outskirts of Atlanta...Cobb County). I'm talking anywhere between $25,000 to $45,000.....NICE CONDOS, many of which are in good areas of Marietta. (Yeah, some of them are nice, but they're in the ghetto). And, yes, these are foreclosed condos. So, is there something I should be watchtful for? And sure, I know that a foreclosed home might have some issues and I'd have to purchase it "as in". I'm starting to get all happy that I could buy my first home for $30,000, and my monthly payments will be like $90/month. Come on, this HAS TO BE a trap! Someone please educate me! (Yes, I'd be buying my FIRST HOME...and I have EXCELLENT CREDIT)