All depends on how far Dunne is off fitness. If he's back within a couple of weeks I'd scratch the idea of a new centre back and go for Diame, Riise if cheap, with Huddlestone on a 6 month loan (with injury clause).
Would love to tempt a world class fading star on loan to give the place a lift (a la Dugarry at the noses all those years ago) and add a bit of nous. Couldn't name names though.
Still think its all futile tbh. 8 million is nowhere near enough.