Here's a package of the 85 Virtually Infinite terrain textures. You can get these free (and without restriction) from http://garagegames.com/index.php?sec=mg&mod=resource&page=view&qid=4484
I'm putting these up here for 20 L$ to help offset the cost of uploading them. They are free for all uses, even commercial.
It was nice of this person to upload so many free textures, but since they are 256x256 they blur so they aren't useful for sim textures, but they can be used on tiles.
Ridiculous price for a must-have item, these textures are some of the best terrain/rock textures I have found in SL. I really appreciate the seller making such a fantastic product available, I would have been happy to pay far more for such a great product. Very generous seller... thank you!