HID question/concerns

[Z06killinSBF]

I would like to upgrade from my current headlights. Does the HID kits use a Hi/Low set up or just low? Is there a preferred headlamp assy. to use? Which kit is a good compromise for price and day to day driving? Is the current draw less than regular lights? My PT car just became my DD and the halogens just aren't cutting it, plus my dimmer needs replacing as I only have hi beams.