if you buy from abroad, make sure first that REL will honour the warranty in this country (check with REL, not the people selling it to you), im pretty sure they will, but its best to check, also make sure they will repair it in this country and you havnt got to ship it back to Holland, that could get costly...lol, private shipping rate for something that heavy aint gonna be less than £80 if memory serves correct...
however if you would prefer to keep the cost down a little, REL Strata 5 at 7oaks, only £625, um and ahh for a bit then say if they can chuck on a Neutrik speakon cable for free you'll take it.....heh (if you like it of course...however they wont have much else to demo it against in 7oaks, only the Q range RELs or the PV1, or possibly an M&K......)
edit: you dont need a conventional interconnect if its just for use with a Hifi, you need the hi-level Neutrik Speakon cable.....which thinking about it may actually come with the Strata 5, cant remember if mine did now or not..lol, i already had a couple from my Quake....lost one, bought another, needed a longer one, found the first one, sold one to a friend....dunno where i am with them now..lol) In which case, get them to bung on a useful item instead of a Neutrik if its in the box already.....they wont knock the price down anymore on the REL unless you've already been a good customer.....
(one reason i'm glad i picked up my home cinema in bits and pieces over 2 years.....kept on getting extra discounts on top of the sale price, plus cables chucked in free...lol....its knowing when and how to ask, in my work i convince people to pay for somethign they can have for free, so im a better salesperson than one in a hifi shop..lol)