Im using a new 15 inch MBP 2.16 with 1gb of ram. Anyway i have noticed two things when i open activity monitor. One is that even with only one Safari page open and one file downloading Safari is a memory pig. The other thing is that i only have 76.17mb free of physical memory. I have a couple of gb of virtual mem left. Anyway is it a Mac thing to use up that much memory? I dont even have iTunes open. Is it safe to start cancelling some processes?