1500$ isnt much for intelligent lighting, you should go with the color changers, here are some choices:
color 250d- 200$ea 250watt lamp
http://www.americandj.com/product.asp?ProductIDNumber=1...Intelligent_Lighting Color 150 DMX 180$ea 150watt lamp
http://www.americandj.com/product.asp?ProductIDNumber=7...Intelligent_Lighting concept: color 350$ea 250 watt lamp
http://www.americandj.com/product.asp?ProductIDNumber=1...Intelligent_Lighting if you really wanted to buy some scanners, you could get some djscan 250s- 200$ each, but the movement is choppy- you get your moneys worth. You could make them look decent if u put one on each side of the drummer on floor stands.
http://www.americandj.com/product.asp?ProductIDNumber=1...Intelligent_Lighting You should buy a fog or haze machine to, it makes the lights look a hell of alot better.