How can anyone possibly say we don't need a striker?
If Van Persie is out for a prolonged period (even two months) we don't have a single other central forward on whom you'd feel happy to rely.
That's not a situation you'd accept at centre half just because your fullbacks and deeper midfielders are part-time defenders, so why accept it at centre forward because Cesc, Nasri and Arshavin have been known to score a goal?
Chamakh can't kick and Bendtner's a dick. And both may or may not be here next season. The lack of concern about that from the fans is full testament to how paltry and indeed aggravating their contribution in the last six months has been.
Our best option would be Theo but he's completely untested in a central role over a prolonged period.
A gifted, productive striker who can play with or without Van Persie and score goals with his head and his feet (and his arse or elbow if need be) should be number one on our list.