I've discovered a new program that is going to be incredible. It's not free but it's reasonably priced. The Professional version is a bit more, especially when they aren't running the 33% discount but they do that occasionally so you can wait for it.
Go have a look at the site (
filterforge.com) and you'll see what all the excitement is about. You can create Photoshop Filters and procedural textures for your 3D work without writing one line of code. It's a node based app so it takes some time to get used to but it's very, very powerful.
I've created a filter and submitted it to Filter Forge for inclusion in their catalog and it was accepted. They have a great program that if you submit filters and they get used (downloaded) by enough people, they go as credit towards a free copy of the program and ultimately, a free lifetime license. It's a pretty sweet offer. So, go have a look and get to work making filters and textures. It's a lot of fun and a powerful new tool.
Here is a link to my filter:
http://www.filterforge.com/filters/9135.html . I needed a texture to simulate an urban area as seen from a very high altitude and couldn't find the right texture. So, I created one in the trial version of Filter Forge and was hooked.