You already have a Hi-Power. Get the trigger tuned (or do it yourself -- with parts from C&S or just do some polishing.) Get "Stephen A. Camp's HI Power Disassembly Guide" which is worth its weight in gold. (You can find it online with a search engine.) The Hi-Power is a much simpler gun, and shouldn't be a problem to detail strip or tune.
(Stephen Camp was once a regular on this forum, and a wonderful source of knowledge about both CZ-75s and Hi-Powers. He died far too young [at 59]. A gentleman, in the finest sense of the word, and a scholar. He is missed. His books are still available.)
That done, look around for a used CZ-75B. (If it has any miles on it, it'll have a much-improved trigger over a NIB CZ-75B.) Or shop until you find a sub-$500 deal as WVSig did.
Then you have both and will probably have both with less money spent -- and you won't continue wondering about a CZ.
I've got both, both have been tuned, and I like both.
The Hi-Power fits a smaller hand better, and since it's Single Action Only, you don't have the long DA trigger pull of the CZ. Happily, you don't have to start the CZ from double-action, as it can also be carried or started from cocked & locked, just like the Hi-Power. The after-market hammers from CZ Custom or Cajun Gun Works will, alone, make it a much better SA guns.