Thanks Ladies for all the great advise. Giving credit to the designers is huge and because I never thought I'd get this involved, the majority of downloads were never tagged with designer's names : (
I do have my photo's organized by folders: Name - Year - Month and when I download the photos I name the photo by the event and the day it was taken. I have a seperate folder under each year called Prof Pics - which are photos that I've had taken by a photographer. Organizing the photos has been extremely helpful - wish I had done it with the scrapping stuff.
I also recommend a 2nd hard drive, or MORE! A year ago, while downloading digiscrap items, I got hit by a virus and it "wiped" out the harddrive and I lost 5 years of photos!! It cost my $1200.00 to recover the photos - I got lucky, but it was an expensive lesson. I now have 2 harddrives for photos and scrapbooking!