Apart from those themes in the repository and Gnome-look.org, are there other places to get themes for my Ubuntu Desktop?
Also, are there any 3rd party repositories of themes and other eye-candy?
Here you'll find some Ubuntu related art: http://browse.deviantart.com/?q=gallery%3Aubuntu-artists%2F24290476
And here, Ubuntu awareness material (and release countdown buttons) : http://spreadubuntu.neomenlo.org/
Here are some themes PPAs:
All of those are amazing themes. The first PPA comes with the updated Ubuntu Light Themes backported from Ubuntu 10.10 to Ubuntu 10.04.
This weblog does alot of customization tutorials and various other ubuntu thematics related topics.
Plus its in England
I have been using this for so many years, their collection is just unmatched in terms of volume and quality.
Reddit pics (http://www.reddit.com/r/pics/) is sometimes a good source for artistic, odd, funny, or bueautiful images that make good desktop backgrounds. Here are a few I've found (I especially like landscapes):
You might want to look at this eye-candy project from France, it's amazing: http://www.bisigi-project.org/?page_id=8&lang=en
It works great, I didn't have any problems with the themes and they are complete, meaning that you have their icons not only on your desktop but also in nautilus file browser.
I apologize in case an answer from above has already mentioned it.