Prize ideas are being tossed about, but in the end, it will probably just be straight up cash. Like you said: shipping is a potential problem, plus the idea is to make the prize(s) something that can help people's business. Your idea of what your business needs and mine may be two completely different things. If it's just cash, then you can put that to whatever you need to grow your business.
You're welcome to everyone that has said "thanks". Now stop saying thanks, my ego's already big enough, I don't want my head to explode.