This is all some pretty good info. I've been getting some pretty interesting feedback both here and elsewhere. My main goal is to build a high performance cluster, and as I was thinking about how Bryce Lightning does not take advantage of multi-core's, I felt terrible until I realized the grander scheme of things. Still reading up though. Other issues that must be considered seriously is the heat such a system will generate. I'm also looking into a/c units, for instance. It's a lot more than just buy a bunch of computers and go.

Those prices from those professional render farms seem kinda high to me. As a Bryce user, I don't like high prices and I think to be attractive for other Bryce users, the price for using a render farm will have to be something low enough someone won't think twice about. Anyway, more later ;-)   Have to think about the next challenge.