Installed with 10.5.6 Leopard, comes with original OSX install DVDs. No keyboard or mouse. Computer in Stanford office on the Quad. Available for pickup 11-4 Mon-Thurs. Cash only.

This iMac (MB419LL/A) features a 2.93 GHz Intel "Core 2 Duo" processor, with two independent processor "cores" on a single silicon chip, a 6 MB shared level 2 cache, a 1066 MHz system bus, 4 GB of RAM (1067 MHz DDR3 SDRAM, 600 GB hard drive, vertically-mounted slot-loading DVD±R DL "SuperDrive", NVIDIA GeForce GT 120 graphics with 256 MB of dedicated GDDR3 memory, a built-in iSight video camera, and built-in stereo speakers that sit on the bottom of the 24" glossy TFT Active Matrix LCD (1920x1200 native) display. Connectivity includes four USB 2.0 ports, a Firewire "800" port, built-in AirPort Extreme, and Gigabit Ethernet, as well as a Mini DisplayPort, which supports an external display in "extended desktop" mode.

http://www.amazon.com/Apple-MB419LL-24-inch-Widescreen-Computer/dp/B001U0OH8K