First I should probably point out that I haven't really used this software since A4, apparently lots of great things have occured and some pretty nice 3rd party software (sphere, notably) has emerged. I'm used to the old-school WED level-building process, but I've read that the old BSP-based level geometry is out, and creating geometry in a modeling program is a better move.

Now, my question is as follows... If I were to model, say, a cabin in MED, create the geometry etc no problem... But how do I go about skinning it? Presumably, the player would be able to walk inside the cabin, so the inside would have to be skinned as well, but I can't figure out any obvious way to do this in MED (all I ever seem to get is a shot from front/back or something similar) - so how do I skin the inside?

I have to assume I'm much better off using a 3rd party program to model with... Ideally one that is free, and would have a built-in skinning function so I wouldn't have to tool around in MED. Any suggestions?

All help on this is much appreciated.