davidsoc, this may be the pistol you're looking for:
http://www.cz-usa.com/products/view/CZ75ShadowSAO/ SAO and it's tuned to have a pull of 3.5 - 3.8#. The SA CZs have the same grip frame and feel of the 75 B. The least expensive option would be to buy a 75 B SA and send it to the custom shop for a trigger job. There are pistolsmiths over at CZ Forum that can help as well. The CZ 85 Combat would be a good option also if you just want to disregard the DA aspect. The 85 Combat doesn't have the firing pin safety of the 75 B and stock triggers are better. I've owned CZs and Hi-Powers and there's no doubt that the Hi-Power is a classic, but for the same money or less, you can get a CZ with a trigger tuned to your liking and my preference would be the CZ.