Hi billwilliams!
I upgraded to the Pro version and am happy with my decition.
I like and use the Enhanced User Interface (which is part of the Professional version) and enjoy the additional protection layer of the Skiptblocker-provider...
With Pro you have the possibility to customize all the scans and providers and also automate the action when a virus is detected.
An other good thing is that if you buy your license now, you can upgrade to the avast! 5 Professional edition whenever it comes out. Also an upgrade to the avast! 5 Suite is possible in an inexpensive way.
kind regards
onlysomeone