Cool. :) I'm not too much into transposing or even looking at other peoples music, so I don't know too many chord progression for already established songs. But I think I come up with some cool chord progressions of my own. Here's one of them.

intro
Em // B7 // Em // Cm Amaj // Em //B7 //Em // Am D7 //
verse
Gmaj // C7 // F#7 // B7 Bmaj7 // Gmaj // C7 // F#7 // Am7 // D7
chorus
G7 // Cmaj7 Cmaj6 // Dm7 // Cm6 Caug C Cdim // G7 // Cmaj7 Cmaj6 // Dm7 // G7 F#m7 B7
repeat intro
interlude
B7 Am Cmaj (repeat x3) // B7 D7 // G7 // Cmaj7 Cmaj6 // Dm7 // D7 Am6 //
breakdown
Em // Cm7b5 F#m7b5 (repeat x4) // B7 // Am Cmaj (repeat x4) // Am7b5 // G#m7 // Gm7#5 // F#m7b5 //
Em // Cm7b5 F#m7b5 (repeat x4) //
ending
Em // B7 // Em // Cm Amaj // Em //B7 //Em // Am D7 // Em // B7 // Em // Cm // Adim // G7 // F#m7b5 // Em ///

I know there alot alot of familiar chord progressions like, 1, 5, 6, 4 and stuff like that. But hey they work and they are very flexible in terms of melody.