cool, you can use a whole load of speakers.
The problem with asking for advice of course, is you get everyone reccomending what they like best! - its almost predictable really.
I'd rather be predictable than reccomend things I dont like though...
You could try Living Voice with the Lavardin. They like free space positioning, and with their high efficiency have quick bass. Used/ex-dem pairs always available from definitive audio's site.
I think you might like big studio monitors of one type or another, but Im discounting them because of their size, which isnt very WAF for you.
Mike (merlin) had some merlin VSM's. The tweeter they had was about as detailed and clean as you are going to get. The bass was very very quick. They were studio monitor like, and very different speakers to Living Voice - which are about fun and dynamics.
You could say the merlins were even across the sonic spectrum, and the living voices are more fruity in the mid band, but now Im sounding like hifi+
Both are very attractive speakers.
From the bbc type sound you've gone for before (ls3's etc), I'd be reccomending you try some harbeths, which are a different type of sound again - although I have very limited experience of them.
What always works well in every show I've been to are Audionote speakers. Again, very efficient and good for an amp like a Lavardin. They work in room corners easily enough and aren't too big, both of which might be good for WAF. They have a warm generous sound, that is really enjoyable for longer listening sessions. They are very good value as kits from
www.hificollective.co.uk. You see the odd pair used aswell.