X-Arcade's Trackball Mouse isn't for the faint of heart (or wallet - it'll set you back about $100). The arcade-style controller weighs in at 15 pounds, includes a center trackball and six buttons (for lefties and righties) and comes bundled with a dozen classic arcade games. And how well are you rewarded for handing over a Benjamin and making room for 15 pounds of hardware on your desk? According to Gaming Nexus' review, pretty well. The reviewer found the Trackball Mouse to be "exactly like I remember it from my days of Centipede." If that's not enough of an endorsement, the review also points out that "just playing Centipede, Crystal Castles, Missile Command, and Millipede brought back a ton of memories. With those games you have to use the trackball to get the full effect." Music to our ears. Of course, if you do decide to pick this up, the biggest question may just be where to put it, since you've no doubt already splurged for X-Arcade's joystick-based controller as well.