With the extras, the deleted scenes and the alternative ending have optional subtitles, with the other stuff I'm not sure.
Didn't know about this site. But it seems their DVD prices are lower than on amazon. Yes, shipping fees are quite high. Maybe you need to order a lot of thinks, so it pays of. But when I ordered from the states the last time I had to pay about 15 Euros for customs - and I had already paid the shipment fees!