I don't know about dalites acoustically transparant screens, Stewart is the king in acoustic screens as far as I know. Be aware there is a current issue with the Sony vw10HT and stewert microperf screens where you get a moire distortion.
As far as good dalite screens, a popular choice (for the sony 10ht) is the HiPower material. There are several users at
www.thebigpicturedvd.com Sony 10HT forum that swear by them. I myself ordered one but won't receive it in two weeks! (argh the agony)
Good luck! Excellent choice of projector!
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It's great to have all this great gear. But I'd instead put all that money into software (Movies) I'd have SOMETHING TO WATCH ON ALL THIS GREAT GEAR. Doh!
