I don't know coinfloor exist but I seriously warn people not to use sites that ain't being used my users in the forum. Transactions involve money and if there ain't no one yet can give you a review to that site, don't use it. You'd be safer not to.
coinfloor has a good rep and they've been around for a long time. they're not fly by night nobodies. they're gbp only so it's a pretty obscure market.
Yes they do. In the dropdown list of pairs, go past XBT/EUR and XBT/USD to just XBT> and hover over it. All the other trading pairs then appear including XBT/GBP and XBT/JPY. The volume is very low at about 1% of the EUR volume, but that's probably because the fees are so high.
i think it's kinda pointless to use an obscure currency on an exchange with better ones. there won't be any liquidity. same goes for things like the btc-e eur/btc market. it's a freaking joke.
if your heart is set on one currency, and it shouldn't be, then go to its biggest market especially if it's small overall.
because gbp costs no matter where or to who you're sending it when it comes to exchanges i'd give up on the idea and go straight to eur at kraken.