Vince,
There's a bunch of discussion on this. Do a
Google Site Search on '
rdss on apple mac' for previous discussions.
Also, members
Wagercapper and
Telegony are Mac/RDSS users and can give you their specific detailed experiences, and perhaps others as well. Try a PM, or perhaps they will see this and post a reply.
As I understand it, RDSS works quite well on a Mac. It does needs Windows to be running on the Mac and there are several ways to accomplish this.
Good luck!
Ted