I have a friend who had the deviated septum surgery and it cured a rash of woes he didn't even know he had - and most of his snoring issues. (as a roommate in college, he could shake the walls 2 rooms away at times)
I had the Turbinate Shaving surgery done to my sinuses about 10 years back and it also made a world of difference in my ability to breathe and the frequency of sinus infections during the worst of allergy season.
they may do it as "day surgery" - where you check in first thing in the morning, have the surgery done, and are sent home by dinner time, or they may keep you overnight just in case your a "bleeder" - or react especially "well" to the anesthesia.
Either way, if they use a general anesthetic, plan on being pretty much useless for about 2 days due to fatigue and lack of endurance. After that you'll be fine. The surgery shouldn't leave you with much bruising after the second day, although blowing your nose won't be any fun for about a week.
good luck!