Not much to be said but massive bargains to be had on Steam over the Christmas period.  The retail guys are probably having simultaneous heart attacks right about now:

The Steam Holiday Sale is on now through Sunday, January 3, 2010. This year's sale has begun earlier than years past so gamers can save big on last-minute shopping via Steam's Gifting functionality. Gamers can save up to 80% on select titles, with daily and week-long specials running during the promotion.