Wow!!! 8-O That's quite a question!
I'll see what I can do to at least provide some initial answers...
You mentioned minDV, so I'm assuming you're thinking about a standard definition camcorder that records to miniDV tape. Sounds like a good choice to me. Your camcorder would almost certainly have a firewire port, so you could connect it to a computer with a firewire port, then upload the video you've shot to the computer. If you have Windows, the video should appear as a bunch of .AVI files on the computer. If you have a Mac, I think they would be Quicktilme files (any Mac users reading this, please help me here). So you wouldn't need a miniDV deck unless there's no firewire port on the camcorder (a few older camcorders didn't have this port).
Now that you've got the shots on your computer, you can start editing. The computers operating system probably came with a simple video editor that you can use for starters. But you'll probably want to buy a video editor. There are several to choose from, but make sure the one you choose works with your computer. For instance, Final Cut is Mac only, Sony Vegas is Windows only, I think Adobe Premiere MIGHT work with both. After editing the video, you'll be able to watch it on your computer.
So now you'll probably want to make a DVD, so you can mail it to grandma to watch on her TV. You'll need a DVD burner drive and DVD authoring software to do that. Some editing software comes packaged with DVD authoring included, so read the product description.
OK, that's the basics. Other things you'll be wanting eventually are:
-- A good sturdy tripod. (Highly recommended!!!)
-- A UV filter to attach to the lens. (Protects the lens from scratches, too.)
-- An external shotgun mic. (Make sure your camcorder has a mic input.)
-- A movie light or two.
-- Light stands for the lights.
-- A sturdy case for your camcorder.
Whew! That's enough for one post. As to what brands and models to get, I'll leave that for other posters. :D
Hope this helped!
Ken Hull
P.S. -- something to keep in mind: Try to stick to one brand of miniDV tape. Different brands use different methods of lubricating the tape. Sometimes the different lubricants don't "get along" with each other, and gum up the works.