I love my CZs and my Sigs...
The Sigs can feel a little big in the hand, so make sure it is comfortable to hold, and not too big for your hands. Also make the trigger reach in DA mode is not too long for you to get a good pull. (the 229 actually feels bigger than the larger 226, due to the frame being a little bigger, so keep that in mind)
Some find the trigger reach on the CZ line a little too long. The grip is usually comfortable for most people. Some may also find the slide on the CZ line difficult to manipulate due to its design/size.
Sig and CZ make good polymer pistols as well.
The beretta 92 has similar cautions as the Sig.
Glocks can be nice pistols, I prefer the gen 4. I also like the 17 better than the 19, as the 19 has a grip just a little too short, and the finger grooves just a tad too small for my liking.
I find the M&P to be a great poly pistol, but the trigger leaves a little to be desired, both the pull and the actual trigger... the trigger feels like it flexes, and the pull is a little gritty and mushy. An Apex Tactical drop in sear and trigger kit can really make the trigger very nice. The Forward set sear and trigger kit is very nice for the range, and the action enhancement kit is a great all around , but it does not have a replacement trigger with it, so thats an extra. Your looking at about $100 either way... I felt it very much worth it for my M&P.
The new VP9 is nice, and has a very adjustable grip. My fiance shoots mine very well, and she may steal it from me.
The Walther PPQ is very nice, and has the best out of box trigger of any striker pistol. (the Apex upgrade in an M&P is better, but that's not out of box and costs extra) My fiance felt it a tad slick when shooting it though, but that is something that can be fixed with some talon grips, which are cheap.
There are other options as well... most modern semi 9mm pistols are going to be a good pick so long as it fits your hand well.