Installing new accessories Looking for advice.

[tazshido]

My list of farkles is already pretty extensive, but of course, I want more. I'm getting ready to install two HID (35w) auxiliary lights and a Stebel Nautilus on my 2006 Tiger. My idea for the horn is to tap into the existing curcuit for the stock horn to a relay to trigger a direct curcuit from the battery to the Stebel. I'm also pondering putting an interuptor switch in that original curcuit so that when the switch is "off" I get only the stock horn and when its "on" I get both the stock and Stebel. Am I right in my thinking on this?
As for the HID Aux lights, what's the best way to wire this set-up so as not to drain the system of needed amps. I saw the HIDs as the obvious choice because, after firing off, they draw a lot less amps than a typical 55 watt halogen, and they are brighter. If my thinking is jack the &@(% up, please let me know.

[Bixxer Bob]

Agree on the horn, but don't forget to put an in-line fuse in the main supply to the horn, as close to the battery as you can.  In fact, since you are adding HIDs as well, and they'll need a fuse, why not put one supply to a 4 fuse holder then it'll double up as your distribution point.  

Have a look around for Stretch's old wiring setup, it'll give you a few ideas.