Kris, You're right about needing a 360-degree light in addition to your "Masthead light". My 23 has a "split" masthead light at the top of the mast which has two bulbs in it- one facing forward (225 degrees) and another facing aft (the remaining 135 degrees). The light is available at West Marine (I forget how much I paid, I think around $39). On my mast, there is a mounting plate at the top of the mast with a hole in it to pass wiring through. I was able to use existing wiring, though it sounds like your boat may not have the wiring in place. The drawback to this setup is that you need to turn on both bulbs when anchored, thus draining your batteries faster... Also, the wiring can be tricky- I wired mine to two seperate switches at the electrical panel to avoid any short/open problems. (I suppose it should also be noted here that I rebuilt the entire electrical panel from scratch- I have TONS of extra switches now for the radio, vhf, instrument lights, etc). One final thought- Previous posters mentioned that the light does not have to be at the top of the mast to qualify as an anchor light, as long as it is above the cabin structure of your boat and can be 'reasonably expected' to be seen by any oncoming vessels from any direction. I tried one of those "flashlight" style anchor lights (looks like a flashlight on a long pole) attached to my boom, but recommend against this. The battery life of the flashlight is EXTREMELY short-- only a few hours, at best. Mark N's suggestion for a Mega Light is a good one, if you'd rather not muck about with mast wiring. Good luck with your project! Let us know how it turns out...--Jon Bastien'2 Sheets to the Wind'Key West, FL