I just read on CNET that "P4 systems based on Synchronous DRAM (SDRAM) don't perform nearly as well as their RDRAM counterparts". The system that I was just about to buy has 256 MB of DDR RAM. Is DDR RAM ideal for a P4 CPU or will I run into the same problems that you find with SDRAM? Is DDR Ram just a faster version of SD Ram or a different type altogether? Should I go with RD Ram? Is anyone using a P4 and if so what kind of Ram are you using and what is the performance like?