Essential tips for buying a case: how to avoid common mistakes, what to look out for, and how to find the right PC case.

XL-ATX: 10.3" x 13.5" -- EVGA released the first XL-ATX board in 2009 (X58 Classified 4-way SLI) while Gigabyte and MSI followed with models of their own in 2010. But as with most of these form ...