Hi Lisa,
Welcome to TechSoup and glad that you are here. You are definitely in the right place for the kind of questions you have. Just browse around and you will find a lot of resources, both in our forums and in the learning center articles; as well as the discounted technology items in TechSoup Stock.
For the specific kinds of questions you mentioned, here are the forums that specifically focus on them:
For advice on purchasing and pricing equiptment,: Hardware forum
For questions on software try the Software forum.
For specific question on donor management software or member database use the Technology for Fundraising forum
You can also just jump in where ever feels right and we will do our best to anwer you. We've got some great experts - both volunteer and on staff at TechSoup.
Best wishes,
Sasha