I also have a dual 1gz 1.5 gig Ram and it does tend to get sluggish at times. (Depending on whats in the scene) Onw way I have found to increase speed is to diable the Figure Circle. (I thinks thats what its called) Unfortunately you will need to do this everytime you load a scene. Other than that it seems that Poser likes to cache ALOT on my system. So short of setting up two 10,000 RPM serial ATA drives in a Stripe RAID I dont think we'll see too much helpt there. Also on the Dual 1ghz I have found that increasing the bucket size increases the time to render. (On complex scenes with complex nodes.) I am waiting for the dual core 3hz G5's. If they dont manifest I will be buying the Intels. (But that will make Poser even slower till eF compiles a compliant binary)