Matrox keeps updating its multi-display thingamajigs, this time with the first Quad-Head GPU in the industry, according to the company. The M-Series M9140 LP PCIe x16 can drive up to four 1920 x 1200 screens with 512MB of RAM. Matrox says its for business time, so hedge fund managers and fans of the Conchords will be able to get their graphic information overdose for $599. [Matrox via The Inquirer via Crunch Gear]