Was looking at some of the new big bore revolvers, came to the conclusion that I am just too short and skinny for one.
I have rather small hands, so finding something for myself would be difficult at best.
Now listen to your Uncle Slim... I shoot a ton of N Frame Smiths and I have relatively small hands and am pretty skinny to boot. You shouldn't have any problem getting a grip that will fit your hand properly.
There's tons of aftermarket wood and rubber grips that will work.
Check out the Smith forum:
http://www.smith-wessonforum.com/cgi-bin/sandwcgi/ultimatebb.cgi
I'm over there under the same screen-name.