i already have both games and thy are a lot of fun, with some unusual weapons.
If you pre-order the game you get both of the original games which are about 5 years old for free. price but if it's based off exchange rates is going to be about $25). The price of the game is very reasonable at £17.99 (don't know the U.S.
Steam have had a pre-order offer going for several weeks now, 10% off the latest incarnation of Painkiller called Resurrection.