> How's the battery usage? And how often is the HD being accessed for > virtual memory, even with your 576MB RAM? Battery use is undoubtedly better, but it's difficult to tell how *much* better. When I first did the upgrade, I was still using my old battery, which was at the end of it's useful life and only giving me about 30-45 minutes a charge. With the new battery, I'm getting well over four hours. > I ask because I'm running Panther on the same iBook, but at the moment > chugging a long with only 96MB... And before I get myself a 512MB DIMM > I'm interested in user experience. I also need a new battery, so is it > worth the money to get extra RAM + new battery or should I save that > money, sell the clamshell and buy a newer iBook although I would miss > my > clamshell a lot then?! I'd do both; even without a new battery, more RAM will give you better performance in OS X. (I think the 512 MB DIMM cost me about $90.) Now that you mention it, I have an extra new iBook battery that I'd like to sell; I thought I was thinking ahead, so I bought two new batteries, unaware that Li batteries don't do all that well in long-term storage (so by the time I need it it may not be in useful condition). It's a BTI Battery Tech battery, still sealed in the original packaging, only bought one or two months ago. I paid $135 for it, and I'd be willing to sell it for $100 plus a few dollars for shipping. You (or anyone) can contact me off-list if interested. BRIAN/bpearce at cloud9.net