Well, there isn't really a set hardware list that mkaes the computer faster, every piece of hardware can act as a "bottleneck" to the computer.
You might have a fast CPU, RAM, Mobo, and GFX Card, but with a 5400RPM harddrive, your loading times and access time will halt your system to a crawl. Or you could have a perfectly configured computer hardware wise, but poor computer mainteance and system cleaning can bog it down to a crawl.
These are what i would upgrade (in order) to make my system faster:
Motherboard (Because this determines ALL the other hardware you can buy.
RAM (depending on what you are doing, don't buy 2GB if you don't need it)
Video Card (this last, because gaming is not ESSENTIAL to run a computer. You can put off gaming till' last, and you will appreciate it when the rest of your hardware is good and not acting as a bottleneck.)
2GB of RAM won't damage your computer, but it certainly isn't necessary. 1GB is pretty common these days for gaming, 2GB for those who want the absolute top of the line experience. And the speed/type of the RAM is important too.
<marquee scrollamount=\"1\" scrolldelay=\"8\" direction=\"up\" width=\"400\" height=\"65\" style=\"font-family: Verdana; font-size: 8pt\">
Compaq Presario V5000 laptop