I wouldn't actually mind a swap for Cassillas, lets say a 30million + Casillas. It wouldn't be that bad actually, we can build a defense so that casillas don't have to do that much, then again Buffon is the most concentrated goal keeper (he can go a whole 80 minutes without a touch on the ball, then make a brilliant save!), so I think to some aspects we'll definately lose quality between our goal. But still, I Keeper can't make all the difference, as long as we dont have van der Sarr as our keeper we'll do fine!