If it's just meant to be a sidearm, I recommend the S&W model 66 with a 4" bbl. If he wants something bigger, I'd go with a Ruger GP-100 with a 6" bbl. I'd definitely go with stainless steel since it requires so much less maintenance.
I have both these guns, and they are great. I usually carry the S&W because it is so much smaller and lighter.
If the caliber is definately .357 then I would give my 2 cents for the S&W 686, 7 shot stainless steel in the 6 inch barell. I own one in 4". If the purpose is to hunt deer, I would upgrade and go with the Ruger Bisley or Blackhawk Hunter in 44 magnum with 6 inch barrell.
Also.............the Blackhawk comes with scope rings. They shoot very well and are in the same price range as S&W $500-$600