I would like to get some opinions on the 9mm Smith & Wesson SW99. I saw some used police trade in guns for sale for just under $300 with 2 16 rnd mags. It seems like a good deal but i don't know much about these. A friend of mine has a 9mm Walther P99 and i really like it. What is the difference between the Walthers and the Smiths? Are there different models or configurations of these? Any info or personal experience with these would be appreciated.