I bought an '04 330 convert. If you like the 325, you'll love the 330. I added the sport pkg (cool wheels, better seats and not too stiff suspension), convenience pkg (nice wood, built in garage door opener, etc.), xenon lights (very bright and always aimed just right), heated seats (even in Florida I like them, gets you more top down time), park distance control (so my wife doesn't back into something), and Auto trans (cause I get stuck in traffic a lot).
At 6000 miles the car has had no trouble and is always a kick to drive. I am considering adding the Dinan S package at the first check up which is showing due at 9000. I want the bigger sound, removal of limiters, and of course more power is always better (not that it's lacking). Another Dinan feature I'm looking for is the change to the auto trans in the steptronic mode. Currently it is not much different than pushing your Oldsmobuick through D1,D2,D. I understand the Dinan part will make it more performance oriented. The auto trans is fine though. Brakes are great but you do have to get use to cleaning those wheels often. I wish it came with a built in compass too. The top is absolutely wonderful. Mine is Blue and matches the car nicely. It is one of the few ragtops that looks good with the top up or down. I'm not crazy about the heat/vent controls either but it wouldn't be a deal breaker. Both work fine but simpler would be better.
I would highly recommend taking delivery at the Performance Center in SC. It costs you nothing except a one way ticket there and the gas to drive home. They take good care of you including transport from the airport, the hotel, all meals, tips, etc. You'll see the museum, the Z3/X5 factory, and get to drive a car like yours on the track with some pro advice. Great experience! I don't know why anyone would not do this. Just tell the dealer that's how you want to take delivery. Doesn't cost them either.
Enjoy the car and drive safely. Like James Dean said, "The life you save just might be mine." But then we know what happened to him.