I also heard about Viera wanting to play for United.. so has he been signed? I wouldn't mind this move, despite past rivalry and all that.
As for Carrick, I do think £18m is a lot more than he's worth but I'm not surprised about Nistelrooy's selling price. It was just about right value after all the time he played for United and scored those goals. We do need a specialist striker but I'm not too concerned about our midfield anymore.