I think you need programs, which often cost a couple hundred dollars. Here's some names:
Render Max (www.rendercorp.com)
Lemon (www.ice.org/~martin)
Muster (www.vvertex.com)
Rush (www.3dsite.com/people/erco/rush)
Load Sharing (www.platform.com)
Hope that helped
MSN: cyborg_corporation@hotmail.com
AIM: RavagingOrc
ICQ: 49041947