Even if it doesn't fit your hand, etc, the Glock is a good choice, because it is reliable and simple to maintain, and quite inexpensive. Your hand is smart, and can still learn the gun.
Yes, the CZ is cheaper, but it is by no means reliable, and much harder to maintain. My favorite was having to drift out that bloody pin to clean under the extractor, which constantly clogged with crap. Good times.