Welcome aboard. Kinda got a thing for Volvos myself. Most common P/S leak in a 9-3 is the pressure line running under the lower radiator support. If that's the case,hit up TSL user "wayfarer", he just pulled a perfect one out of a parts car.
Are you talking about EPL (European Performance Labs) in CT? If so, they're not too far from me and I have heard very good things about them. JZW has been recommended by a few members and seems to be the one I'll be going with.Welcome to the link! If you are seeking a tune there are a few tuners amongst the boards here who have all been doing a great job for a bargin. I know DeLorean & PaulH of EPL Performance (and also your source for all car parts) will do a great tune for a Trionic 5 car (as I am running their tunes in two vehicles)
There is also JZW Performance tuning I have heard good things about.