The bag drop is exactly the same as checking in. You take them up to the counter, and they weigh and tag them, then they disappear off down the conveyor.
The way Virgin does the check in is that you either print out your boarding passes at home, or you go to a kiosk (computer terminal) in the airport and print them out there. Either way, you drop your bags off in the traditional way.
Are you going with Virgin? Coz if so, you can check in the night before from midday to 9.00pm. You get rid of the cases and get your boarding passes like you would normally, but the next day you simply have to go through security with your hand luggage. Just the one queue, much better.