I remembered playing The Saboteur when it came out, and I've had an itch to play it for the past few years and was so disappointed that I couldn't find it anywhere -- I'm so glad it's finally on Steam!
It took a moment to get used to the older gameplay/graphics in comparison to newer titles of similar play style (we've come a long way), but it feels good to play this game again.
If you've played The Saboteur before and want to pick it back up, this game works on newer PC's as long as you run it in compatibility mode, and for the current price of $4.99 you can't go wrong. If you've not played it before and want a GTA-esque game, based in Nazi-occupied Paris where you get to blow up the bad guys and race cars from the 1940s, I can't recommend a better choice!