Vostro 1500 (XP Home) came, system reports 3.75GB RAM Physical Address Extension, so you can apparently use almost all the 4gb if you order it. I don't like the desktop screen. Where is the old Dell desktop kept, on older XP systems? I'll move it over from the Inspiron 1200 if I can find it. There's a little more HD free, there being no CP/M partition (good for about 3GB). They charge each for not loading online archiving, and not loading Dell Support. On the other hand, there was no junkware at all to uninstall except Media Direct. It comes with a hard copy (soft cover) owners' manual. It will take a day to set it up, including the 15 hours downloading windows updates, and real player. It looks like a nice enough machine. Seems very heavy. I don't think you'd want to carry it around. Ordered July 29, came just now.