My computer is a few years old. It runs on Windows XP and is an HP Pavilion 7955. I am trying to get the best speed out of my computer as possible. It has 256 MB of SDRAM for memory, 40 GB of space, and 1.5 ghz with an Intel Pentium 4 Processor. I am probably going to invest in 1 gb of RAM in the near future, does anyone else have any ideas on any other necessities such as if I would need to invest in a new processor also or something of that sort?