Prolific Excel author, John Walkenbach, has released a new version of his popular Power Utility Pack (I mean Pak). I’ve just downloaded the new version and I’m all giddy to try out the new features. You can download, and otherwise read about it, at John’s PUP v6 Page.
If you choose to buy, the best way to do so, in my opinion, is to buy a book authored by John that includes PUP. You get a nice discount on PUP (sometimes 100%) plus you get a good book too. Check the PUP FAQ for a list of books that include PUP.