You have some good suggestions here already
to add another, you might consider a
Beratta PX4 Storm,
available in 9mm, .40 S&W, and .45 ACP
http://www.px4storm.com/
and another Heckler & Koch you might want to look at,
the
HK USP .40 or maybe a few others.
http://www.hk-usa.com/usp_general.html