Taurus 709 or PT111
.
By the way... I came in this thread to mention the Taurus 709...
In no particular order (OK, my personal faves are at the top ):
Glock 26
Kahr P9, CW9, MK9 or PM9
S&W 3913
Walther PPS 9mm
Taurus 709 or PT111
Kel-Tec PF9 or P11
Lots of people recommending a PM9, with price being a limiting factor. Impact Guns has the PM9093N (two-tone with night sights) on sale for 609. Hard to pass up.
KAHR PM9093N PM9 9MM POLY NS 6RD Black and Stainless Steel