Only twice have I tried to render a scene using procedural terrains and both times it took so long it just didnt seem worth it.  I constructed a new procedural terrain tonight to experiment with and started rendering it with Ultra, came back about an hour later to check the status and saw that 0% had rendered and it was estimated that it would take 1360 hours to render.  My comnputer is only a year old, I have almost 4 gigs of ram and a quad core....I'm just wondering if this is normal and if so if there's any way around it.