There is no such thing as a 'first party' PC title, but here are a few you might be interested in...
Vista and Games for Windows were shunned like fleshy lepers at a buffet line, but there is no doubt that titles like Fallout 3, Dragon Age: Origins, Brothers in Arms: Hell's Highway, FarCry 2, Prince of Persia, Tom Clancy's H.A.W.X., a little game called Spore, Mercenaries 2: World in Flames, and far too many more to list show that faith in the platform is going strong. nVidia and ATI will likely trot out this year's power-pig video cards, so prepare your buzzword Bingo sheets for words like Tesseract mapping, Fong, Gigaflop, and more as we wade through to figure out just how well these new hunks of silicon will run Bookworm Adventures 2.