ABRView lets you preview all of your ABR Files of your brushes
Get it here
After installing it, click on “add another directory”, then browse to the directory where you store your ABR files, The default location is C:\Documents and Settings\username\Application Data\Adobe\AdobePhotoshop CS4\Presets\Brushes , or wherever you store your ABR files
**although its best to store them on the C drive for convenience when loading brushes, be sure to keep a copy of all your favorite brushes on another, non-OS Drive, for safety**
The abr files wont appear in the window, but click “choose this directory” anyway
when you are back in the program view, double-click the folder you just added, and then click on individual abr files to view them.
Click on “adjust preview options”, and set the “brush preview size” to 240, and the “Maximum set preview width” to 996… click ok