I see you've already made up your mind Redcoat, but I'll add my 2cents...
I own a full-size PX4 in .40, and I personally don't recommend them to anybody. The cheap plastic slide stop lever broke on mine, while it was in the factory case during a two-hour drive up North. Worked fine before the drive, broken when I got to the cabin. I used to love my PX4 but completely lost faith in it after that.
The 4006TSW CHP would be my top recommendation, very solid construction, and while they are abundant at the moment, they will become scarce on the market eventually. The integral rail is a sought-after feature, and the all-steel frame will stand up to the abuse of the .40 much better than alloy.
If you can ever find a 4040PD for sale, I would highly recommend picking one up. It's my personal favorite .40 gun for CC, and the proprietary magazines are still for sale around the net, factory new and at reasonable prices.