Laptop memory upgrade question

[TreyWilly]

I have a Dell 600m I purchased in 2004 with 512k memory, and I would like to upgrade this. I don't really know (and have been unable to find out) whether I have two memory slots or one. I also don't know the exact specs of my current memory.

I found this on the Dell Web site, but am assuming I can get a better upgrade for cheaper. Is there an equivalent on a site like newegg? I want the best performance from my computer, but don't want to spend much more than the Dell price if possible.

I'm also very competent with computers given a sample of the general population, but am a novice compared to most on this forum.

All help is much appreciated.

Trey