Hi, I have an aluminum iMac with a 2.4 core2duo and 3.0GB of RAM. I am currently running four programs and I am not sure if I am overtaxing my system and possibly I might need more memory. The readout of my activity monitor is Free 14.25MB Wired 266.04MB Active 1.79GB Inactive 956.2MB Used 2.98GB Since the free is so low, is that bad? I have 956 Inactive......what does that mean? I am not sure of the difference between Free and inactive... Your thoughts?