Hello Jeff-
I have been looking at all the available CZ parts for a couple of years now. The bad news is there just isn't that many parts options but there are some good items. We all know Hakan's grips and I have a set, but have recently bought some of these:
They also have a number of competition parts available at their store:
http://ghostholster.com/catalog/index.php?cPath=28
Bar-Sto also produces a CZ aftermarket barrel but I heard they only put out one batch a year. I think Europe might have a number of parts since the CZ is popular there and I have recently purchased this titanium hammer from a contact in the Czech Republic:
The CZ seems to be getting more popular here and who knows what could happen. I have a pre-B CZ-75 at a smith right now getting made over as a CCW. I'll post pics when it come back.
Thanks
Ross