I've got a three-year old laptop that I'm chugging by with at the moment. It's a bit slow compared to current systems, but remains adequate for my immediate needs. 384 Mb RAM seems to be okay. I've worked on a system with 256 Mb RAM and it's not enough for Poser without Poser constantly using the hard drive as virtual memory. 1 Gb RAM would be great, but it's an expensive jump on a laptop (for example, upgrading to 512 Mb from 256 Mb is $64 at Dell while going to 1 Gb is another $255). Spending more on a larger hard drive is a better choice if money is tight. I'm not sure what advantages exist for having 1 Gb over 512 Mb RAM other than possibly slightly faster renderings. I do know what a pain it is to try to delete loaded content when there's not enough space (most products don't have an undelete function). As long as I don't hit physical limits for RAM, my concern is more with the physical space limitations on a hard drive.