Thanks for the feedback ksdb and Ace, much appreciated.
Ace, the recording was constructed in Sonar 5 Producer edition. The drums, keys and bass were "played in" via midi keyboard and the resulting midi tracks were then routed through Native Instruments Bandstand (a DXi soft synth plug in) and converted to audio tracks. Four tracks of guitar were added (2 clean, 2 Dirty) and then the track was passed on to Ted who added 5 vocal tracks, before returning it to me to mix and master.
The key to the tracks realistic sound is due to me sampling the first 6 bars of Gabriels Original track, ascertaining the tempo from the sample then copying and pasting it throughout the track. Check out the audio loop of the sample I used here:
http://www.sadge.co.uk/Sadge_moribund_sample.mp3
I must stress that I only used this one sample for the verses and overlayed the instrumentation on top. The Bridges and Chorus parts were completely "played in" from keyboard and of course the vox are all Ted, no samples of Gabriels voice were used at all. Hope this helps, ask away if more info is required......
Cheers