Hey Monodb.
In Chordie you can transpose songs. At the top of the functions box on the right (inside a song with chords) the top one is transpose; slide up or down until you find the chords you want!!
Of course not useful when a song is not listed! If you do find the chords and want to transpose write all the chords out with a space above each one. Beginning with the first, whether its's a chord which is easier to sing to or to play, count up (or down the same number of semitones (individual frets) until you reach the same number.
For instance, if you have a song in G with the chords G, C, Em and D and you want to put it to C take the G as a barre chord count up 5 semitones and do the same for each: C = F, Em = Am, D = G!!!
VOILA!!!
<-----<< On an even field, only talent prevails! >>----->
Gans Gwarak da yn dorn yu lel, gwyr lowen an golon!
>>-----> [color=#FF0000]Rudhes[/color] hag [color=yellow]Owres[/color], Kajima <-----<<