So you want something a little different than your traditional homeschool curriculum...and you still don't want to spend a ton of money. You can do that too.
You can try Old Fashioned Education. If you are anything like us, you already have lots of the books required for reading. If not many if not all are available for download free online. The nice thing about this site is they have a schedule already done for you.
Then there is that whole freeware thing...you remember that right? Stop! had an article about that very thing. As if you didn't have reason enough to try out freeware or shareware.
Some free or almost free - just the cost of S&H - software can be found at Planet CD ROM. I haven't tried them yet but I might have to since I want the I Spy software. Or the kids want the I Spy software. That wasn't a freudian slip or anything.