Looking on ebay, another 2GB is $30. That's not too bad for an expensive option. That gives you four, especially if it's octo-core. You should have 8 RAM slots at that. Even then, if it has 512MB Slots, it's not *too* bad I guess. don't argue with free. Eventually FB-DIMMs will come down in price once people realize there is no money made to be in them. DDR1 is finally coming back down in price since people have been replacing their machines from the DDR1 era with DDR3-based machines (especially people who don't upgrade often).

Take it, shelve it even. The machine is still worth $700+