I have looked around the net and can only fine the one detail texture in greyscale and would like to have 5 more or so that are different... I would appreciate it if someone had a site with some in mind as I have used google and come up with nothing. Also I am not sure but how do I go about in Photoshop making the greyscale images equal to each other in intensity values? Where I have one image thatsb brighter than the other and would like that greyscale to match the other one??? Thanks

Unless you are using photos for your base textures, you may just want to use procedural textures for your detail. The gametutorials.com terrain sample used
what amounted to a saved perlin-noise texture for its detail texturing.

I don't remember what that tutorial looks like... but am away from my computer right now so I can't upload the kind of detail texture I am talking about...