I convinced the companies I assist to switch to opensource programs where possible and its saved them a small fortune in licenses. Some of the staff now have clean consciences as they are not running illegal programs too.
Most now use Openoffice and some of the staff didin't even notice

Clamwin is a good antivirus program, and AVG (personal use)
I find it annoying that the school system in the UK just expects the kids to have Microsoft Office and Sibelius at home. Most of the parents are forced into downloading illegal versions because they can't afford the licenses.
Schools should all be on opensource.
TWD