Amazon has Left 4 Dead 2 on sale for $27.99 today:
http://www.amazon.com/gp/product/B002BRYXRQ/
Xbox version's on sale too for slightly more, but PC version's the only one worth getting If you haven't picked it up yet I'd definitely recommend it
http://www.amazon.com/gp/product/B002BRYXRQ/
Xbox version's on sale too for slightly more, but PC version's the only one worth getting If you haven't picked it up yet I'd definitely recommend it