It took a five minute phone call to Virgin to ensure I had them, but I'm delighted to say I have the Sky Premium HD channels in all their glory. Watched bits of Coraline, The Boat That Rocked and Night At The Museum 2 and the contrast with the standard definition channels is remarkable.
I've long thought the PQ on the SD Sky channels took a nose dive when they launched the HD versions, and some quick comparisons yesterday proved that there's a massive difference even on a 32in TV at 720p. With Film4 HD I've found that there's a less notable drop in picture quality when you watch the regular channel, but on the Sky movie channels it's incredible.
Haven't tried Sky Sports yet - saving that for the Charity Shield match on Sunday - but the movies look great and well worth £7 a month in my book.