My HD8 DJs arrived yesterday. Oh my goodness. It's hard to imagine how headphones can sound better than your current pair, especially when they don't cost much more!
These things are ridiculously good, especially for the 210 GBP I paid for them. Metal construction, awesome carry case, nice cables and a spare set of velour pads.
The bass slams the side of your head. Songs that weren't bass heavy now are. Highs are crisp - piano sounds beautiful. Vocals are clear and gentle. Songs such as I Remember by Deadmau5 sound outstanding - and the headphones haven't even burnt in yet! They look extremely promising indeed.
I also own a pair of B&W P5 and Custom One Pros. They're better than both - a hybrid of the two, you could say.
If you want a more full review I'd be happy to provide one.