Re: buy sportwagon ?
Most new 'cool' estate cars are called sport waggons now - don't think 'estate' is a cool word any more - just giving you a bit of ribbing there!
Make sure you get plenty of reciepts, a full service history is a MUST with an Alfa and ideally, a years warranty if you're buying from a garage. Some people have reliability issues, mainly centering around the electrics, others say their Alfa is the most reliable car they've owned - depends if you get a lucky one.
On the good side, there's not as many about as the equaivalent Golf/ Focus estates and they are far nicer to drive and look way better. Equipment-wise, Alfas tend to have a few more toys, especially on the Lusso models