Is there anything special I should know about removing a kitchen faucet? Can I use a putty knife to remove the old caulking and then simply remove it? That is after I've unscrewed the lines.

There really shouldn't be caulk. You use plumber's putty. It will not harden. You just make a bead on the fixture and force the bead out and remove the excess putty. Putty isn't sticky either.

Now for removal. Some faucets require "special tools" to get the nuts off the bottom, especially ones with only a single hole.

Two handle faucets have nuts and usually you need the funky looking wrench to remove the nuts.

Sometimes the water lines are hard plumbed ad require cutting.

There are nuts at the bottom of the fixture that generally require special tools to remove. Some standard special tools and some specialty. I have hung the tool used to install a Delta 470 faucet under the faucet, since it came in the package.

The faucet is a standard 2 hole Price Pfister so hopefully I don't need any special tools (there weren't any in the box). I assume the "funky looking wrench" you're referring to is a basin wrench? If so, I've just got to find the bugger. It's one of those tools you never use but can't live without!
Thanks for your help:D !

If you are installing a new faucet the basin wrench may not be necessary since many faucets use a nylon nut with wings for hand tightening. Removing old stuff might require a basin, 12" works better under a sink. They are fairly cheap, about $12 if you can't find your old one. Are your supply lines tied to stops under the sink or not? If yes, close the stops and back off the small 3/8" compression nut on the top, I always replace the suplly lines when installing a new faucet, steel braided is my favorite.

So, you will need a little bit of plumber's putty and 2 wrenches for undoing the nuts. I like to use silicone plumbers grease to make things easy to remove later.

The basin wrench may or may not be required. Sometimes slip-joint pliers work.

Turn off the water under the sink and open the tap to MAKE SURE that the water is off before continuing.