| From | Team | Fee | Apps | Goals | To | |
|---|---|---|---|---|---|---|
| 1998 | Tottenham Hotspur | - | 0 | 0 | 2000 | (Player) |
| 2000 | Queens Park Rangers | £60,000 | 42 | 10 | 2001 | (Player) |
| 2001 | Portsmouth | £1,500,000 | 37 | 18 | 2002 | (Player) |
| 2002 | Aston Villa | £5,000,000 | 37 | 6 | 2004 | (Player) |
| 2003 | Norwich City | Loan | 15 | 4 | 2003 | (On loan) |
| 2004 | Southampton | £2,000,000 | 27 | 12 | 2005 | (Player) |
| 2005 | Liverpool | £7,000,000 | 85 | 22 | 2008 | (Player) |
| 2008 | Portsmouth | £9,000,000 | 38 | 11 | 2009 | (Player) |
| 2009 | Tottenham Hotspur | £9,000,000 | 73 | 12 | 2011 | (Player) |
| 2011 | Stoke City | £10,000,000 | 225 | 46 | 2019 | (Player) |
| 2019 | Burnley | - | 6 | 0 | 2019 | (Player) |