I too would like to see a young prospect. We already have several players who're getting on in years, and that obvioulsy includes Ole. I'd go for Huntelaar, Quagliarella or Torres, but Huntelaar or Quagliarella would be a better choice. Berbatov's great too but it will be very tough, plus someone under 25 years of age would still be the best option, so the Hunter/Quagli will be my first choice.
As for Ruud, good for him that he's still banging in the goals but we should be going for youth.