Hmm i've ordered this one from Amazon. http://www.amazon.co.uk/PLAYSTATION-NINTENDO-MONITOR-CABLE-LEAD/dp/B0015MISAG/ref=sr_1_16?ie=UTF8&s=electronics&qid=1205775695&sr=8-16
Though saying that I may have bought the last one as there's only one there. It's quite expensive for what it is but it says it's compatible worldwide which should solve the ntsc problem and also you'd probably need speakers or something for the audio to plug into. If you want me to tell you how it works when I get mine and post impressions i'd be happy to, being in the same boat and all. It's worth trying to order one anyway, see what happens.
Someone on Neogaf is buying this one http://www.vdigi.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=2&category_id=3&manufacturer_id=0&option=com_virtuemart&Itemid=1