We have used Sell Off Vacations for the last few years and have always ended up with a good price. I have spent days comparing prices with this site an dsome of the others and have always found that they end up being basicaly all the same. Not sure if this year will be any different. We are not heading south this year as we are taking a ski vacation.
I just used HotWire for the firrst time the other day (after many recommendations) and was able to get a 4.5* hotel in downtown Toronto for $80.00. After booking it I went to the hotels website and the room was $189.00 on there.
Not bad. I would definately use HotWire again.