I agree. Agger's strengths are almost exclusive to those you'd expect from a holding midfield player (a position which he used to play). Defensively, he's good, but nothing special.
His compatriot Simon Kjaer, great CB in the Euros.
Sahko from PSG, I don't think he's wanted there anymore.
Olsson from WBA, quality CB in my opinion.
There are others.
Good call. Aly Cissokho is apparently available around the £8-£9 mark - we could snap him up and still have £12m change from the agger deal to strengthen certain areas.