Im looking into getting mine tuned to i found a website that will do it for $365 http://www.genuinesaab.com/ its supposed to give you 60 hp and 60lbft of torque. 30 if you got the fpt, you need to get a bpc too though if you got the lpt.
What sort of tune are you looking for? There are people in the US who can do it for pretty cheap, or you can have someone like JZW, in Colorado, tune it for you. I was a bit intimidated when I first tried to tune my own (spare) ECU, but after doing it once, it was extremely easy. The hardest part is gathering the right hardware to power the ECU outside of your car, and connect the ECU to your computer.