More cat trees online than you can poke a stick at: LOL!

http://www.ikeahackers.net/2006/08/feline-physique-get-ikea-stolmen-cat.html

http://www.ikeahackers.net/search/label/pet%20furniture

And here's some European designed cat gyms: http://www.cat-world.com.au/forums/index.php?/topic/132583-some-different-cat-trees-things/

Back in Australia now:
http://www.coopsandcages.com.au/cats/cat-scratching-posts/

http://www.dealsdirect.com.au/pet-supplies/cat-scratching-poles-trees/

Here's a wall mountable kitty tree:

http://www.scratchingposts.com.au/?page=products&cat=combos&product=47

http://www.shopbot.com.au/cat-tree/price/australia/36159 These offers change daily as stock runs out and is replaced.

http://www.soldsmart.com.au/l3.aspx?goods=JY2910&cam=32&u=104 These change daily as stock runs out.

Love this climbing tree that attaches to doors - space saving idea http://www.bowhouse.com.au/p/665329/smartcat-cat-climber-.html

Then there's http://www.funkycat.com.au/

and if one can afford European prices plus freight https://www.facebook.com/DrapakiRufi

http://shop.petfun.de/en/kratzbaeume/grosse-kratzbaeume/joy.html

http://www.katzen-deko.de/mobile/smartphone/kratzbaum-holz/kratzbaum--monte-carlo-175cm-----scratching-pole--.php

and from the UK http://tiggatowers.com/collections/complete-poles