Re: looking for a .40 cal
Another consideration is magazine availability, Glock 17/34 22/35 mags are cheap n easy to find, HK mags are way too exspensive, and almost always need to be mail ordered, Sig mags are not as hard to find and are priced OK, HS2000 mags were 10 bucks, now SA has almost tripled there price for XD mags, and I don't have any idea what M&P mags cost or the availibity.
Another note on Glocks, IMHO I would avoid the Gen 4 models until Glock pulls there head out, Gen 3 run like a sewing machine and can be had at a decent price.