Well since you said you are a 1911 kind of guy normally, have you thought about the 325 Night Guard?
I am a 1911 kind of guy, and I like S&W N frames as well.

I have a 325 NG and I like the fact tht is shots 45 ACP and it reloads with full moon clips. The 325 is very controlable even with full power 230gr loads or 185 +P loads. It has a lot less flash and blast than a short 357 Mag.

It does have 2 less shots, but it reloads so fast with the full moon clips I do not see that as a big disadvantage.

Plus, I do prefer the 45 ACP to the 357 Mag.

I think of all the short barreled N Frames, the 45 ACP makes the best choice for an urban carry/defensive revolver.

It packs a big punch, is controlable, low flash and blast and with full moon clips is fast and easy to reload.