Hi Tom. I dont know much about drifting (I think that is what Power Skid would be) but i had a quick look around and found a forum that has a calendar for some events.
A POWER SKID is just that. From a standing start you fry the tires without using your brakes and the winner is the one that does the longest skid. Some cars can do 3-400metre skids at 150mph. Its a must see!!