Can't hurt to discharge it, but then again, unless you're removing the chassis from the monitor, you really don't need to. And, sitting for two weeks should be enough time to bleed off most residual charge anyway. If all you're trying to do is remove the entire monitor from the game as one piece, just unhook all the wires going to the monitor (power, video, be sure to check for bolted-on ground straps), remove the bolts holding the monitor in place, and lift it out.
If you're paranoid, go ahead and discharge it, doesn't hurt anything. To discharge, get a cliplead and a flat blade screwdriver. Clip one end of the cliplead onto the shaft of the screwdriver, the other end to the monitor's metal frame. Slide the blade of the screwdriver under the anode cup (suction cup at the picture tube) to make connection with the metal contact in the center. If it's charged you'll hear a nice ZAP!. That's all there is to it.
-Ian