You'd be surprised how much Poser 4 stuff will work in 3. Here's some points to watch: 1) Get the 3.01 patch from CL - most important! 2) A lot of "clothing" downloads are just texture and/or transparency maps which need the Poser 4 clothes as a base to work from. However, as long as you're prepared to pose them manually, most conforming clothes will work. 3) Except for face morphs, most P4 morph targets won't work. 4) P4 texture maps for the figures are laid out differently; they won't work. 5) Most character downloads call up one of the standard P4 figures - as long as texture maps and/or morph targets aren't involved (see above), you can often use the equivalent P3 figure instead. 6) 3D models (OBJ, 3DS or DXF) will work, so will most props; but without the "smart prop" features if these are included. 7) Plain modelled hair will work, but transparency mapped hair won't. 8) Poses will work. As well as PhilC, Poserworld and 3D Comics Collective have lots of P3 specific stuff. Depends what you're looking for. Have fun!