anyone know of anyone making ceramic pads for the armada,gettin tired of cleaning the brake dust every other day

Many menbers here (including myself) and at ClubTitan are using the Carbotech ceramic pads (front only). The produce about 80% less dust and work very well. We recently had a group buy on the pads from Mossy Performance, one of our sponsers. Check with Greg V about the pads. He also has the Crown brake lines.
Look under Site Sponsers for info. You can send Greg a PM to get details.

You can use the Porterfield R4s pads too.

Porterfield R4-S 2004 NISSAN ARMADA Front AP1015 $ 99.95 Rear AP1041 $ 89.95

how will changing to cermaic pads interfere with the warranty, especially with the brake issue... don't want to give them a reason not to replace the rotors or to fix the brakes.

Are they hard on the rotors?

Don't know about the others, but the Carbotech pads aren't hard on the rotors. My rotors look better with the Carbotechs than they did with the original pads.