Championship Manager 3 Codes -

Manage England:
Select any team at the selection screen. Click on an English player on the team squad screen, then click on "English". You should now be in control of the England team.

Unlimited money:
Enter Jimmy Rules as a manager name.

Free players:
Use the following steps to buy any player for free. As an example, Rivaldo can be signed to Man Utd. As ManUtd, go to Rivaldo and put in a bid of £0, press "Offer", and then "Yes". With another team under your control, e.g. Liverpool, go to Rivaldo and put in a bid of how much the player is worth, press "Offer" and then "Yes". Still as Liverpool, click on the action button and select "Change Transfer Bid". Now click on the small triangle in the top left hand corner. Then click on Man Utd (their name will appear once you have clicked on the triangle). You now have total control of the transfer bid. Just click "Accept" and your bid of £0 will be accepted. Withdraw Liverpool's bid for Rivaldo, and providing you can meet the player's wages, you will sign the player for free.

Hint: Good players:
Sign these players quickly, as they will be one of your top signings:

Vance Warner
David Woozley
Dean Chandler
Malcom Christie
Carl Laurie
Peter Prospar
Jamie Shore
Daniel Montenegro
Martin Palermo
Leyder Preciado
Bosco
Bizzarri
Pablo Aimar
Tonton Mokouko
Sixto Peralta
Silvestre