using more RAM
I have to admit I don't have any 'graven-in-stone' requirements for over 1 GB of RAM, I just like the idea of having as much memory as possible available.
The most memory intensive stuff I do is gaming and web browsing. I do generally qualify as a "power user" based on my habits ... I usually keep several applications loaded up even if I'm not using them all. And with regards to web browsing ... I like to have multiple windows open, and have had up to 30 ro 40 browsers in play at one time (currently on an AMD 2700+ with 1GB ram). When I had only 512 MB of ram, on an older AMD cpu, I could not get more than 30 IE windows to display before I started losing content and encountering strange behavior leading to the app crashing. Based on what the symptoms were, it looked to me to be a memory issue, but I don't know if these windows are stored in central storage or in the dedicated video ram. My old machine had 32meg video ram, and the current one has 64. I imagine my next machine will have a 128 meg card.