Here's the stats. eMachine model W1640, 1600+ AMD Athlon XP Processor, 128mb DDR, 3D S3ProSavage8, 10/100mbps Ethernet, 56K Fax Modem v. 92 ready PCI, 40GB hard drive Ultra DMA/100. Windows XP Home edition. That's everything that is listed on the specs paper here. I want to purchase 256 - 512 of RAM. What type of ram do I search for? I've seen SDr- something or other, DDR, and a few other misc. terms. Anyone know what the specific term for the kind of RAM I need for this thing? All replies much appreciated. Thanks a mil.