| From | Team | Fee | Apps | Goals | To | |
|---|---|---|---|---|---|---|
| 1998 | Columbus Crew | - | 55 | 44 | 1999 | (Player) |
| 1999 | Nottingham Forest | £1,500,000 | 72 | 18 | 2002 | (Player) |
| 2002 | Birmingham City | £150,000 | 77 | 16 | 2004 | (Player) |
| 2004 | Coventry City | £200,000 | 78 | 26 | 2007 | (Player) |
| 2005 | Derby County | Loan | 7 | 0 | 2005 | (On loan) |
| 2007 | Sunderland | - | 16 | 5 | 2007 | (Player) |
| 2007 | Southampton | - | 47 | 19 | 2009 | (Player) |
| 2008 | Bristol City | Loan | 24 | 2 | 2009 | (On loan) |
| 2009 | Crystal Palace | Free | 16 | 2 | 2010 | (Player) |
| 2009 | Ipswich Town | Loan | 7 | 1 | 2010 | (On loan) |
| 2017 | Central | - | 2020 | (Manager) | ||
| 2020 | Anguilla | - | 2022 | (Manager) | ||
| 2022 | Saint Lucia | - | Current | (Manager) |