WOW - New Graphics Card or more RAM?

[mjdoom]

Sometimes I wonder if I am blessed with some strange luck or something. My current computer (which I put together piecemeal by buying parts online 2 years ago) seems to run WoW just fine. I don't remember exactly what resolution I use (I think it's 1024x768) but my gryphon fights are fine and I can even participate in raids without any serious problems. Almost all of the lag I experience is due to server population and I very rarely run into any load time issues. The one key aspect is that I keep terrain distance at the minimum, all other settings available to me don't seem to make much of a performance difference. (Side note: How do I see my fps numbers?) This is all despite the fact that my computer is:

Windows XP Pro
2 GHz Pentium 4 CPU
512 MB RAM
NVidia GeForce 2 MX 32 MB graphics card
Soyo K7V Dragon Plus! mobo (I think that's the one)

Now, I'll admit that I don't know much about graphics cards. My previous computer had a Voodoo Banshee that served me well all the way into the beginning of 2003 and then I bought this card cheap off my roommate when he wasn't using it any more around that time. Despite all of this 2 year old equipment I seem to run the game fine. That said it seems that not all of my graphics are up to the same caliber that I have seen in some screenshots but it still seems to run fairly smoothly.

All of these stats seem similar to Nobbie's from my perspective. Am I just lucky somehow or is there something more that I might have/be doing?

I feel kind of bad because it sounds to me like I'm bragging a bit but I'm kind of curious as I never really understood how RAM and Video Cards interacted to allow you to play certain games effectively.

- mjdoom