I bought ours here, it has worked out quite nice, they love scratching
the sisal rope...

http://www.drsfostersmith.com/Product/NavResults.cfm?N=2002+113197

I got one through ebay that I LOVED.. and the cats are pretty keen on it
too.  They have a website, http://www.armarkat.com/.  they are pretty
inexpensive considering what is sold at the local stores and on fosters and
smith.  You can find some really good deals on cat trees on ebay.

Connie - guardian of 6 and owner of four trees.

I have two cat trees that I bought from www.createacatcondo.com ("Molly and
Friends"). Each tree has four tiers. The first tree has 3 beds with raised
edges and an enclosed upright tunnel as the bottom tier. The second one has
beds with raised edges on all 4 levels I wanted beds with raised edges (or
"lips") because I didn't want to take any chances that Duffy would lose his
orientation and possibly roll off the side (especially when asleep). I
highly recommend this company and their products. It is a small,
family-owned company; and they will build completely to your specifications.
The trees are exceptionally sturdy and well-built, and they come completely
assembled. One of mine weighs 85 pounds and the other weighs 90 pounds --  
which means they will not topple over, but you should also have your space
selected before delivery so it can be put into place and not need to be
moved around. If you go to their web site, you will find an interactive page
where you will be able to "build" your tree on-site and learn the exact
price for your configuration. The listed price *includes* shipping, and that
is a big "plus" when doing comparison shopping, especially for heavy items
like this. The various commercial pet stores I have visited don't have
anything that even begins to compare in quality. Many of theirs use heavy
cardboard tubes. Mine is made of solid wood, and each of the poles is bolted
firmly to the beds. You also will have a choice of how the poles should be
covered. I had one pole (the second-lowest) on each tree wrapped in sisal so
it can serve as a scratching post. I had the others covered in carpet. You
could also choose polished wood without carpeting, and that would be
adequate for Holly because she can easily leap from one bed to another. The
carpeting is important for Duffy, though, because he cannot see and
therefore needs to *climb* up and down the poles. The carpet gives him
traction for climbing. Incidentally, he truly loves these cat trees! Both
cats use them a lot, but especially Duffy.

If you decide to order, I suggest that you call the company directly and
give your order over the phone. They are very personable, can answer any
questions you have, and will also make personalized adjustments if you have
special requests. For example, I had one of my trees built one foot higher
than their normal configuration, and they also made an extra pole to go
outside the edge of the highest bed so Duffy could always find his way back
down.

Here are links to 3 pictures that show the 2 cat trees I tried to describe.
The first two show Duffy on the new tree, and the third one shows Holly and
Duffy together on the original tree.

http://pic10.picturetrail.com/VOL320/476350/1916528/102784258.jpg
http://pic10.picturetrail.com/VOL320/476350/1916528/102784263.jpg
http://pic10.picturetrail.com/VOL320/476350/1916528/102784268.jpg

I hope this helps.

MaryL