Yes, I have it filled with 4GB of RAM of which the computer can only use 3GB since it runs Windows XP 32bit still for maximum compatibility with all the legacy astronomy control software and drivers for the mount and cameras. Just no easy way getting around the OS limitations until I decide to upgrade the laptop with Win7 64bit. The software and drivers are almost to the point that I could make the jump and not have too many issues. I'm just going to wait a bit more for things to settle down firmly. I would also have to make a big investment in a new version of PS as my version is no longer supported or upgradeable. $600 is a lot of money for PS for a feature set of which I use mainly only about 15% of the tools or features in it. Most of my time is spent in MaxImDL for camera control and initial processing. I just use PS for final polishing and formatting operations.
Cheers, Keith