3D models are in short stock, or even 2D concepts

I'd suggest you first use paper to plan everything before you start the lard arse work in CS 2. Furniture, like the "strool"(which I call it, don't know about the others). Later, or even now(by picking from the imprinted 2D work spread out over the thread) start working on the 3D models.
If you want to use blender i'd suggest you read Cherppow's school.
http://hydlaa.com/smf/index.php?topic=26870.0One project we've been furiously working on is to get the animals and architecture done. Long we've discused the look of Klyran architecture. We've had many projects but now we need to focus on something. Best is to start on the animal and plant life as we yet have no complete mold of Klyron architecture.
All animals that've been approved by many are on the current list in the "Name's Thread", tagged "Animals". I'll start working on the Choria as I have a fetish for fish concepts

And to give you working space.
Idoru how is your work on that Klyran building coming along? I'm curious

Well i could help out with homes.
But what exactly do you need from me? To draw them up in cs2?
Or use blender... never used that before.
~~Datruth
Give it a try and see how ya do 
We are still looking at concepts so lets see what ya got 
I agree. The project is your oyster