O'Grady and Jason Scotland(remember him?) were a fantastic partnership last season for us, but Scotland isn't getting any younger so IF we sign Higdon he'll probably be ahead of Scotland in the pecking order. We also released Marlon Harewood in the summer, so we're still looking to replace him.
We've only got 3 strikers at the moment: Chris O'Grady, Jason Scotland, Chris Dagnall.
Be interesting to know where the figure of £4,500 came from though.