Yeah I doubt I would be getting the PS3 anytime soon anyway
DVI adapter will work but not sound. So you have to add optical input for this. HDMI is overall with video and audio. DVI is only for video. HDMI to DVI will go for video. Missing is sound. Let you know that. You probably does care or not.
It is up to you. No sound or must have sound. I must have it because I have subwoofer for bass sound.