well i like 9mm best, but if you want .40 there are a number of guns they offer.
my top pick of course would be either a pt100 or a pt101..
only difference is the 101 has adjustable sights, 100 has fixed and cost about 20 bucks less.
if you ever shot a beretta 96 you have a pretty good idea of what the taurus will be like.
i have a pt92 (9mm fixed sights) and it is very reliable and accurate.
they also came out with the 24/7 oss, suppose to be a good gun, never shot it my self.