Like others have said, the P-95 is a good 9mm for the money. If you had asked the same question but didn't say you already had a P-95, I think the P-95 would have got many votes anyway.
If you are just bored with the P-95 and want a slightly better gun and don't mind if it is used, there are some nice ones for about the same price as a new P-95. Used Sigs are great guns and the CDNN price is the best I have seen. Used S&Ws esp the 5906 can be had for a song and the are nice guns. New Springfield Armory XD-9s don't go for much more than a new Ruger P-95 but I think they are much better guns. The Rugers are tops in reliabilty but some of the others may have advantages that the Rugers don't. Going with a higher dollar gun but buying it used may get you more bang for the buck. I have bought some nice used guns that were every bit as good as new but since they were slightly used, I got some of them for about half what i would have paid if new. I got a nice Beretta 92fs with night sights for $350. I got a S&W 3913 for $275. I got a used SIG 220 for about $500 IIRC and it has night sights, W. german made, that special black finish and it looked NIB.