The Glock and ammo deal would be hard for me to turn down... and I am a revolver guy. In fact, I hate Glocks. They have to be the single most boring gun in the world to shoot. My 21, which I sold 11+ years ago, was uncannily accurate, never hiccuped, had less recoil than a 1911, and, with +2 extenders, held 15 .45 ACPs. I never left a round in the chamber, as they have no safety. They were designed for LEOs. I have been all revolvers for nearly seven years... oddly, I don't mind leaving them loaded.
I suggest a late model 64 - like a 3" or 4" barrel security guard trade-in. That - and some ammo - will run about the same as the Glock. They are inherently +P rated, so the infamous 'FBI load', the venerable 158gr LHPSWC .38 Special +P, can be used. If you need more for home protection, perhaps you need to move.
My 64 was $315 OTD 5/08 at a local shop - and was apparently never issued by the security guard company that traded it in on a bottom-feeder. It was literally new. J&G Sales, and others, regularly have some DAO, ie, no hammer spur, and some regular 64s for less. It's a great protector - and plinker. Mine, above, looked lonely yesterday AM, loaded and in it's hiding place within arm's length from the bed - so it went to the range with me. Shooting mid-range, at best, level 158gr LRNFPs, aiming an inch or so high at 12 yd - and rapidly, I hardly ever missed the small SPC rebounding plates. I also shot a few other rounds - including those 'FBI loads'. Fun plinker! I had the ~150 pieces of brass tumbled and the 64 cleaned by dinner - then back to sentinnel duty.
I know folks who 'enjoy' shooting Glocks... I am not one of them. Want to see me smile as I pop away with a handgun? Give me a revolver! Good luck - and welcome to the world of S&W revolvers... even if you have a brief sojourn into Tupperware rude-case-tossers (For that price, we'll understand!).
Stainz