If anyone's interested, there is a free utility for photo manipulation that I use for Windows PCs. It has a batch resizing feature that's perfect for this kind of stuff.
http://www.irfanview.com/
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.