thanks all. called Hidden Reef and they sold their three tangs already

But they are getting another shipment this wed so Mike said he would hold one for me. Hopefully I'll get in there before they get sold.
Went to Paul's in Surrey and the one they have is in poor shape and looks like its in a quarantine tank.
Will try to check out Big Al's tomorrow if they are open but I think i'll just hold off until hidden reef gets more in.
On a side note, I saw a pair of Purple Tukas at Pauls and they are just beautiful! But how viable are they in reef tank? I've heard anthias are quite demanding with their frequent dietary requirements. Anybody have any experiences with these beautiful fishes?