I have a fully loaded G5 Quad (12GB non-ECC RAM, 512 MB Nvidia Quadro Card, dual 750 GB hard drives, Bluetooth, Airport Extreme), and would like to sell it to make way for an upgraded mac pro. I've tried contacting some websites that sell used macs, but they seem to constantly low ball me (e.g. offer me $3,000 for my mac, when apple was just selling a comparable model 2 weeks ago for over $7,000). Any suggestions for where to try and sell the computer? Ebay/Craigslist??? Thanks.