Hi ValEff - I would love the same. Have you found anything? I see your post is now a few weeks old.

Hey
I am a freelance textile designer. I saw your post and can recommend a few things. First off A good program plug in for Photoshop is Quick repeat.
http://www.agetechnologies.com/products/quickrepeat.cfm

And while you are at it check out ColorVision.
http://www.agetechnologies.com/products/colorvision.cfm

These are both great tools to get a start, but I find they are very "tile" like when done. I use them as a start sometimes and then go on manually moving things around until I get a more natural look. I find that more natural looking patterns sell better than quickly generated patterns (in the areas I work with.)
A great, free, tutorial for manually building patterns is here.
http://www.repeatpatterns.com/tutorials.php
The tutorials are pretty easy to follow and the photoshop one will show you how to make patterns out of art work you may already have.
A few of my friends have turned to pattern making just from using these tutorials when they other wise wouldn't have thought of it. You can even sell your work here. It's like having your own agent.
Well I hope this is helpful.

Yes it's called pattern maker. You'll find it in CS and CS2 in the top part of the filter menu. It's pretty easy to use but it gets clunky with bigger files. It's not very sophisticated but it works. It's a good quick way to get a graphic tile look. It's harder to hide the repeat unless you try to get into half drops and things like that.