Five things to know about ‘Diablo III’

eleasing for the PC and Mac on May 15, Diablo III is just around the corner. Passionate fans have been waiting years for this -- it's been over a decade since Diablo II first stormed shelves -- and with midnight sale launch events occurring all over the country on Monday, there are going to be millions of red-eyed gamers dragging themselves to work Tuesday morning. Those who don't phone in sick, that is.

But why the fervor? What makes this particular action/role-playing romp such a big deal? Here are five reasons: