I have a 2007 93 estate, its the 150bhp Vector Sport model and its very nice. Mine was immaculate, 115k miles and FSH, I paid about £3750 from a reputable dealer in Bristol about 15 months ago. Happily cruises along the motorway at 75mph giving just under 50 mpg and being a Vauxhall of sorts, is fairly cheap to run and maintain. Around town, short journeys etc though and you will be lucky to get 35mpg.
Things to look for, the EGR valve will most likely need cleaning as the engine isnt the most refined. Its not a massive job but will need doing. Getting fault codes cleared is a bit of a chore, even Saab specialists dont always have the right diagnositics kits. The gearbox is a weak link too and the auto box isnt the best, its just a standard slushbox and will often be confused as to what gear it wants to be in, its always in 3rd when you’d be in 4th etc.
I like it though and I’m glad I bought it over the poverty spec 3 series BMWs