The PRAM battery arrived around Thursday and I installed it today. I forgot how much of a pain it was to replace it. So far it works well, but I need to take it apart one more time to make sure the cooling fan is free of obstructions. If it is powered on after being disconnected for a while the fan spins up to high speed and it sounds like something is making contact with the fan blades.

Currently it has 384MB RAM, a 10GB hard disk and MacOS 9.2.2. I'm using Classilla to post.