If you're looking for a drop in monitor that supports Windows 7 Multitouch applications, 3M has a kit
for you. This 19" monitor may seem very pricey at $1499, but keep in mind this is huge for a capacitive display. Normally monitors this large will have an optical tracking system for the touchpoints, leaving you with 2-4 touch points at best. This capacitive glass-front display is good for a full 10-point multi-touch experience. Check the site
for more details and videos of the monitor in action.