It's funny that you even mentioned Coldplay Pat because I happen to be listening to "A Rush of Blood To The Head" as I type.  I love this album.

But you asked about music DVDs and this is just the CD, so I'll give you a couple of xlent recomendations in that regard.  I have the James Taylor one too and I'll agree that it's fantastic but if you want kick ass surround sound music and video, go pick up The Eagles "Hell Freezes Over" tour DVD. It's DTS AND Dolby Digital and it rocks the house!

I'll also go on record as saying that Fleetwood Mac's "The Dance" is awesome, but dangit why it doesn't do DTS is beyond me.  That band is killer.

Other honerable mentions include King Crimson's "Deja Vrooom", Spock's Beard's "Live in Holland" (Don't Try This At Home) and The Rolling Stones "Bridges To Babylon". They are all pretty damn good with regard to mixing video and audio together.