sorry i just hafe to mention this :
It`s a totaly free modeler , with a great array of usefull tools , with a great rendering engine , with EVERYTHING you need for game modeling , it can export to .x it can animate and export to .x
what else do you want ?
Downloading link :
http://prdownloads.sourceforge.net/k3d/k3d-all-in-one-setup-0.5.0.35.exe?download
p.s it has many seperate things that your instalation will ask you to confirm , just to know that that`s NOT the instalation just repeating and starting over , it`s those files it needs (rendering engine , i dont know , engine and so...)