You can use the coupon in the back of this book to order a free copy of my Power Utility Pak (PUP). This product includes several dozen useful utilities (plus many custom worksheet functions). The complete VBA source code also is available for a small fee.
The Excel 2007 version of PUP was not ready in time to be included on the companion CD-ROM, but you can download a trial version from my Web site: http://www.j-walk.com/ss.
In addition to the Power Utility Pak, many other utilities are available, and most of them can be downloaded from the Internet.