What tools to create models for NWN?

Hi folks, Back in the days I used 3DS Max and could create some intersting things, but what discouraged me was getting 3D models textured correctly. I heard of ways to paint 3D models just like you would paint a Warhammer model (which I like to do) and preferably with a graphics tablet. Can that be done for NWN and with which tools? I would like information about the software (Max, photoshop and the like), the interface (scripts to inport/export models to/from NWN) and the tools (graphics tablet). Any input will be appreciated, Cheers!