Not sure if you qualify but check out http://techsoup.org/ They are a clearing house for donated hardware & software to non-profits. The non-profit I have done some work for has used them for Microsoft and Cisco products.

I have no experience with any of the Blackbaud products but it looks like they has something from them.

I bet your energy usage calculation would be higher if you included what you use while at work. Since this family works from home I bet there are many items running for 8+ hours/day that you have turned off when you go to work.