Taking the front doors off is quite simple. There are 3 screws and a bunch of plastic door clips. Before removing the door panel, first remove the tweeter pod / side mirror trim piece (sort of triangular in shape). Looking at the door, there is one screw in the lower corner of the door panel, below the 6 1/2" spaker. There are also two "hidden" screws underneath the rubber trim piece inside your door handle. Lift up that rubber piece on each end and access the screws below.
Once those are out, simply use a panel popper (available at auto parts stores for $5 - $8) or take your time and carefully pull the plastic panel away from the door skin. Make sure you don't leave any plastic clips in the door skin; if you do, remove them with a flat crimper-like tool (or a cutter if you're careful) and reinsert them into the plastic door panel.
You'll use a 7mm socket to remove the 4 screws on the 6 1/2" speaker. You should be good to go from there...
I will post up some pics, or ask someone to post them for me, of my conversion from stock coaxes to a component set in the doors. I mounted the crossover in the doors (weather-tight, of course), and managed a 7" woofer in the bottom. I also used R-Blox (like Dynamat but cheaper) to cover both the inside of the plastic door panel as well as the door skin itself. I am rattle free, and the speakers are clear as a bell.
When the weather clears this weekend, I'll pull my doors and take some pics. If anyone can volunteer to host them, I'd appreciate it.