If T Lempke wrote it, it's probably a first-class application.
Check out CADintosh first, before you decide to spend money elsewhere.
For anyone who's tried to access Lembke's site to d/l the software, and had timeouts:
There was a problem with the North American-Europe transatlantic link yesterday (Tuesday). The link is designed to be redundant (2 full-bandwidth channels); unfortunately the company that owns it didn't fix a prior breakdown, so now both sides are down, which means no redundancy and no link.
Accessing sites in Europe will be unreliable for a little while, I guess.