While there are many different developers of PhotoShop Action Scripts, Ecover Go is the only one I have found that bundles so many different scripts together. It's amazing! 

They offer the standard ebook and software box covers along with CDs and membership cards and magazine covers BUT they also offer some incredibly imaginative and unique action scripts that will wrap your product name and graphics around a package of gum, an I-Pod, a can and much, much more. Ecover Go action scripts are good. Real good.

This collection comes with a ton of bonus actions to create great-looking titles and effects too numerous too mention. You also receive a handy Color Schemer tool, guides and examples to improve your graphic creation, and much more. Check it out here right now. This one is priced lower than most of the other action script collections that offer far less for the money.