True, Arrow. I like to use DoGA L3/Metasequoia for modelling and Milkshape for animation.
Redostrike, it can be done with L1, but it is a lot easier to do with one of the L3 betas. Side note, L2 and L3 are fully functional for game modelling and still images. You only need to register them if you want to make AVI movies.
For L1, you would have to edit the parts.ini file, create some catalogue images, and setup directories with sequentially numbered parts, but it is doable. I just checked my L1 (I keep it around for tech support purposes. And, it can see some of the custom libraries I have created.)
I strongly suggest trying out L2/L3 since you get much better texture support for your exports to .X format. I've got a rough translation of the L3 Parts Assembler help page for L3, if you're gun shy about that.
http://zircher.iwarp.com/doga
Your call if you want to stick with L1 or try the others out.
I'll zip up what I have for L1 and see if that is practical for e-mail or if I need to put it up on the web.
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TAZ