Modeling clothes is not different from modeling any objet. So you can use any 3D program. But you will have to learn 3D modeling and it's a little long (it is for me). If you want to try, begin with a free program like Blender, very powerful, (http://www.blender.nl/index_community.php) which have already a large community and a lot of tutorials (there are some others too). Rodzilla is speaking about plugins based on collision objects. The best is included in Maya unlimited (dont think too much about it : $$$$$$). At a lower level, for 3DSMax, you have Digimation Stitch, Kelseus Cloth, Infografica Clothreyes, but they are quite expensive too (although clothreyes is now free for R3 athttp://www.reyes-infografica.com/cloth.php) ; Simcloth (http://www.chaosgroup.com/SimCloth.html) is very efficient and free. But again, MAX is not cheap and you don't need all that to make good clothes. About Truespace Steve Shanks have a very clear tutorial on his 1st CD and I began with it (thanks my friend :-) After modeling, you will have to learn to prepare your obj mesh for poser. Look for PhilC or Nerd Tutorials. Be ready for monthes of work and good luck, Serge