As a PS2 owner, I am very happy
As a PC owner, I am very sad.
As a FR/RPG players, I feel it should be on PC, because Dark Alliance only has you playing as one man rather than as a party, and its more of an action/adventure than strictly RPG. (Think Tomb Raider meets Baldur's Gate)
However, the graphics are amazing and I sincerely hope its as gun as it looks.
I hope that future FR titles follow in BG II's footsteps, however, because its one hte finest game I've ever had the pleasure to play.
I wouldnt worry about Dark Alliance. Its just a blip on the future of RPG gaming. More titles will hit PC, you'll see.