Valve is still talking about adding some additional DLC to Left 4 Dead. I know Francis wants portable dual-miniguns, but I'm partial to the Pushbroom, myself. Either that or something to shift Louis away from Steve Urkel and more towards the Samuel L. Jackson end of the spectrum of crazy-ass character archetypes.
Shamus Young is a programmer and writer by trade, videogame nitpicker by inclination. If you have the patience for more of his ramblings, they can be found at ShamusYoung.com.