Refurbished: Dell Optiplex 755 A Grade Desktop PC with Intel Core 2 Duo 2.66GHz, 4GB RAM, 1TB HDD, DVDRW, Windows 7 Professional 64 Bit, Microsoft Authorized Recertified Desktop PC w/1 Year Warranty - Newegg.ca
i found this dell optiplex 755 in a scrap yard perfectly functioning{came with side panel just have it off} its ungodly slow with only a single stick of ddr2 2gb ram and
Dell OptiPlex 755 Desktop Complete Computer Package-4GB Memory Windows 7 Home Premium : Amazon.ca: Electronics
File:Inside of a Dell Optiplex 755.jpg - Wikimedia Commons
Dell Optiplex 755 Motherboard | Laptech The IT Store.