I have an
HK USP 45. It's an excellent weapon.
If I were purchasing a new firearm I would get the
HK P2000 9mm. It's in testing phase so it might be a while before it's on the market though. It's truely ambidextrous and allows for saftey, slide and decocking from either hand. I'm left handed so it's kind of tricky with the USP45. And it is designed for small hands.
My favorite is the
MP5SD. Which is based on the
MP5. Unfortunately both full automatics and silenced are illegal. So is my second favorite, the
PSG1 sniper rifle.