Switch... we did.
Free alternatives can save you a great deal of money--as much as $2325 per desktop (according to this PC World article) and deliver a raft of other benefits associated with open source software in general.
The following 2 sources will be much safer to use over file sharing or bit torrent sources that can be infected with spyware, viruses or other types of malware.
The Free Software Directory
http://directory.fsf.org/wiki/Main_Page
OSalt
Find open source software alternatives to well-known commercial software
Open Source as an Alternative
Our mission is to provide easy access to high quality open source alternatives to well-known commercial products. Open source software is a freeware alternative (that is usually nag-free).
