Birmingham have swooped to sign Brentford's FA Cup hero DJ Campbell in a deal which could eventually be worth £1 million to the League One club.
Campbell has put pen to paper on a three-year contract which will keep him at Blues until 2009.
Blues boss Steve Bruce has been tracking Campbell, signed by the Bees in the summer from non-league Yeading, for the past six weeks.
The 24-year-old grabbed both goals for Brentford in Saturday's memorable 2-1 fourth round triumph over Premiership Sunderland at Griffin Park.
But it was his last game for the club and now Bruce is hoping he can complement Emile Heskey, Chris Sutton and Mikael Forssell with his pace and finishing power in the top flight.
Birmingham will pay an initial £500,000 for Campbell but the fee could double depending on appearances and his achievements with the midlands club.
Campbell scored 83 goals in 109 appearances for Yeading and was part of their side which reached the third round of the FA Cup last season before losing to Newcastle.
He signed for Brentford in the summer and has been carefully nurtured into league football by Martin Allen but still maintained a healthy goal record with nine in 13 starts this season.
Bruce said: 'It is a situation we have been watching for a few weeks now. He has burst on to the scene. He has only started 11-12 games for Brentford.
'We have been monitoring him. We didn't want him to do what he did against Sunderland on Saturday, that's for sure. It reminded everyone that he is a good player!
'He is someone who is quick, direct and young. He is a bit raw but he has a good eye for goal and is an exciting player. He is quite refreshing and from his interviews you can see that he is someone who enjoys playing football.
'You do your homework and he is a decent lad who will relish the challenge.'