If you want a CZ 75B, get an 85 Combat instead. The 75B is nice, I have one and I've done a lot of modifications to it, but the 85 Combat has a few advantages. Among these are an overtravel adjustment screw for the trigger, stock dropfree mag break, ambidextorous controls and they're said to be put through a little more rigorous QC standards, and possibly have harder internals for less wear. The big one to me, has to do with the firing pin. Well, first off it has an intertial firing pin, but no firing pin block. That means if you hit the hammer really hard while lowered with a round in the chamber with a big ballpeen hammer there is a possibility in a million years that it may somehow find a way to go off. That, if it can be considered a real one, is the drawback of not having the firing pin block. Now for the advantages: first off, there is no doubt about its ability to be dryfired, no reliance on a doubled up roll pin or modified firing pin. Secondly, the firing pin isn't retained by a roll pin so you don't have to have a specialized tool like the small drift punch required to remove the pin on a 75B. Third, with less linkage in the trigger group you can theoretically take the trigger to a higher level of refinement. Fourth, this system looks and is less cheesey than the roll pin retained firing pin on the 75B.
If you do get a CZ, and I would given that the alternatives don't do practically do anything the CZ wouldn't but cost more, I reccomend two modifications:
1) install the CZ factory rubber grips and awaken to a whole new world of handgun comfort you never knew existed.
2) get a set of these sights
http://xssights.com/handgun_sights.html
Then there are a host of other options you could try, some highlights here:
-16lbs Wolff recoil spring combined with existing solid steel construction for years of worry-free shooting of hot ammo
-install P-01 trigger to shorten double action pull
-install landyard loop mainspring plug for use with your gemtech or other lanyard
-loaded chamber indicator
-since it has a steel instead of polymer frame you can get the whole pistol redone in the finish of your choice
The CZ's are a perfectly competent family of pistols in regard to "tactical utility," but I find the have a certain "life" to them lacking in other manufacturers' products that just feel like any other machine in my hand. But maybe I'm just weird.