New I would go with the P95. I got my blued ruger P95 for under $300, I think it was $289 on sale a couple years ago. Like someone mentioned previously used pistols and police trade ins are great options too.
Like this S&W 5906 9mm (lot's of police used to use these, they're nice guns)
If you look you can find them cheap http://www.gunbroker.com/Auction/Vie...Item=219144094