Depends... If you have a Video Card that's better than a GeForce 2, you should get the KT400. It costs extra money for the nForce and if you have a good Video Card you don't need it. Plus it has LOTS of head room for future upgrades. But if you have a crappy Video Card less advanced than a GeForce 2, get the nForce. You get a good Video (if you have a crappy one). Also nForce costs less than an add-on card. The nForce chipset is pretty good, too.