I loved mine. Make sure it is up to date maintenance-wise as they can get expensive in a hurry. Mine was pretty cheap, but I spent a fortune getting it back right, even doing a lot of the work myself. The timing belt shouldn't be more than 2 years or 30k miles old. Mine broke right at 30k miles about a week after I bought it. Parts aren't that expensive to replace it, but it is pretty involved. Clutches are also a bit of a PITA and pricey.
My advice would be to take someone along that really knows these cars, they can be more expensive than a 911 if you choose poorly.
That said, mine was like a crack addiction.
Short of the newer stuff, there's not a better all around Porsche in my opinion. Excuse me now, I've got to go hide from the 911 guys with the stake, firewood and matches...