Jaime, if it's feasible where you live, you could always try renting a camera. That way, you get to try out all of the latest technology without having to actually commit to it.
Unless you are planning to use the camera every day or every other day, my belief is that you're better off renting. Shooting (or 'production') is a finite timespan, whether it be a scene for a gonzo movie or a three day shoot on some low budget indie horror film. You only need the actors/lights/PAs etc for that timespan, the same as the camera.
Now, pre- and post-production are theoretically infinite timespans...you can take as long as you like to write the script before shooting, or edit the footage after you're done shooting...the only time constraints or deadlines are how long you want to take, or how quick you want to get it done.
My advice would be to invest more in the back end of things, such as editing software, a DV deck or similar depending on what format you decide to shoot in, etc.
My point is that shoots have deadlines as a matter of necessity...talent has got another job elsewheres tomorrow so there's no time for an extra day. Editing doesn't need to have deadlines. Ergo, I believe it's better to rent a camera and edit at home in your own time rather than buy a camera outright and have to hire an edit suite and/or editor.
Also, whenever you're not shooting, your camera is just gathering dust. It's a lot of money to have tied up in something that will be sitting idle throughout the editing process. If you know where, when, and who you're going to be shooting ahead of time, I'd definitely recommend investigating the rental route. If nothing else, it will also help you to decide which type of camera you do want to buy.