Until some time in the future when we'll be able to get a proper or fuller section made that deals with other 3d programs, I'm for starting a little catelog of links right here. This is for reference sake, so please don't fill it up with questions - please start a new thread for that - otherwise this will not be useful at all.
I was just sent a reminder note, so I'll start things off with that.
ProgMesh 1.1
ProgMesh is an application for 3D polygon mesh simplification.
With it, you will be able to reduce the number of polygons of your objects without a visible loss of quality, making render and editing time faster (so says the web page).
Check it out
http://www.paralelo.com.br/main.htm
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- Phineus