I'm reading this, and I have to tell you that I am personally scratching my head. It's your business, yet you don't want to invest in the tools needed to conduct that business efficiently.
Did I miss something along the way?
Yes. I work for a nonprofit educational project, so probably not the business you are envisioning. We are grant funded and don't have a lot of money to throw around on expenses like these. The work we do on our website and for video materials are all needed but are very "additional expenses" next to the work we do with teachers.
I squeak out what I can, but I won't be going to my boss anytime soon and asking for a huge expense for something that isn't super duper necessary. I'd love to find a solution that improves things, and I appreciate all the advice, but if the price is too high I'll probably just keep doing things the way I do, at least for a while longer.
Thanks all. At the very least, you all have stopped me from possibly buying a cheaper solution that I would have been disappointed with. I may do some more testing with using the iMac the way you all describe.