Thanks peeps still interested to hear from others.
Today I found 5Gb of a teachers USB Stick on the staff resource and within two folders a total of 2.5 gb of pictures by just two students. Thanks to the WinXP Picture resizer, these have been reduced.
Only touched the surface as not had a chance to look at it this term, but so far have got back 9gb. The Disk to tape backup on Friday takes ages, so the less data to back up the better.