I don't know how many of you are familiar with open-source software, but basically it is a free alternative to commercial software and programs. (Such as OpenOffice rather than Microsoft Office.)
Since some discussions we have had in class revolve around cost, perhaps there are alternatives out there for what we are wanting to do. I found an excellent site that has links to download open source software with a brief description of the program, while also selecting which ones would be best for the education/teaching field. This is just one of the many places you can find Audacity for the podcast if you wish to use it.
A computer geek friend of mine absolutely loves open source software, and if he trusts it, I trust it. These programs also allow people (like my friend) to edit the software in hopes of improving it so it can be shared again. Anyway, something to look into. If you like photoshop, or the idea of it without the price, try Gimpshop.