I'd avoid ther dmr, I remember someone on here saying it was awful, and that the freewheel is sealed like a shimano so you have to for out for a full new one each time you broke it.
The hopes are always a good option, an xc or mono is your best bet.
The new echo's look good, but are unproven (I know CLS loves his and all, but the real sceptics won't trust his testimony).
Also there's the second hand king option, which is what I'd recomend, you can normally pick up a king for £170 or so on E-bay.
The thing with rear hubs, is that you get what you pay for, so pay more if you can.