Soundshaper already works on Parallels and similar emulations (or so I've been reliably informed). This is surely an easier and cheaper solution than a cheap PC?
I didn't mention financial constraints that are also hindering an OSX port at the moment. I do however have an old PC running Linux and as time permits, I plan to get CDP running on that and then start gradually re-building Soundshaper for Linux. The Free Pascal/Lazarus route is multi-platform, so code adapted for Linux might well cover most of what's needed for OSX. Crucially, the unit which assembles the command-line batch files that run CDP will need to be converted from the Windows CMD language to BASH, which can be tested on Linux and would also be used for OSX. The new player component, using the 3rd-party BASS library, has already been written in Free Pascal/Lazarus. Much of the user interface stuff - menus, patchgrid and parameter setting - is pretty standard and should port without any trouble. The graph-edit page I'm less sure about. Other supporting pages - CDP Mix page and Data editor - could probably wait until after a first release.