"I already own Vue 5 Infinite, and the "surface replicator" thing looks like a pale imitation of the Vue EcoSystems." From my experimentation with ecosystems I was not that impressed its just a hyped up version of replica (http://www.inagoni.com). I got to thinking the only thing that beats out Carrara's implementation is the ability to say place a rock and have the replication intelligently avoid the rock. This is easy to do using the Proximity shader. http://www.des-web.net/html/proximity.html