I've heard good things about both the Beretta Storm and the FNP, but have no experience with either. The last DA polymer frame pistols I had were both Berettas, a 9000 subcompact and a full sized 90-two. Both shot great and handled well, for the most part, but the 90-two was too big for my needs at the time, and the 9000's slide ran inside the rails, and was difficult for my fat fingers and thumb to manipulate. Having said that, I can only attest to Beretta's quality, though their customer service leaves much to be desired. I have only hearsay to offer for FN.
The Gen 4 Glocks have grip options, for what it's worth. My Gen 4 19 fits better than the Gen 3 ever did. Might be worth a look, unless you're totally committed to the DA/SA thing.