Hey Chuck, glad you found VP4 as it is the best, most realistic pool sim ever created. I play it every day (alias is cincy_kid hehe) and only wish there were more who played it.
However since I am a one pocket nut that's really all I like to play unless bored then I will play about anything. I think there have been a few threads on here and/or on onepocket.org (mine is here:
http://www.onepocket.org/forum/showthread.php?t=10900) to try to drum up some interest.
By the way, for $30 that's the single player version. You can get the online version with unlimited access to all games, all modes and online play with your friends or other for only $10 (I believe that you have to renew it once per year).
Anyways, great game indeed and they have something for everyone (3 cushion and straight rail billiards, one pocket, banks, snooker, all your traditional pocket games and games I had never heard of before until I started playing it.
Look me up if you are online and we can bang some around
PS - I also played Hustle Kings on PS3 and although it was ok at the time, its really no comparison to VP4.