World of Warcraft race changes, name changes, appearance changes, or server transfers, there's no time like the present. More specifically, Blizzard is running a 50% off sale this week for all of those services.
WoW Insider notes that realm transfers involve a bit of logistics and planning. You'll need to empty your mailbox and make sure you're not heading up any arena teams. Also be aware that some of your add-ons may require some rejiggering after the transfer is complete.