This is a great idea since steam games have different prices in different regions. Would be nice if you could specify your region.
In fact, we could maybe get a whole thread going with people from different regions offering games at their prices.
I'll throw in a game or two as well, I'm in the EU2 region. Here are the best deals from EU2: http://www.steamprices.com/eu2/topsavings
(Check out Mirror's Edge, definitely worth getting IMO.)
Contact me if interested in any of those games!