| From | Team | Fee | Apps | Goals | To | |
|---|---|---|---|---|---|---|
| 1997 | Ipswich Town | - | 48 | 1 | 2002 | (Player) |
| 1999 | Colchester United | Loan | 2 | 0 | 2000 | (On loan) |
| 2002 | Newcastle United | £5,000,000 | 105 | 3 | 2007 | (Player) |
| 2007 | Wigan Athletic | Free | 96 | 5 | 2010 | (Player) |
| 2010 | Sunderland | £1,000,000 | 47 | 1 | 2013 | (Player) |