I'm amazed when people trash Mark as 'not being able to sing' - its only when a normal person such as myself has a go, you realise how much control and character Mark has in his voice, that make his songs much more listenable.
He was a terrific singer right from the early days. You don't hear many DS songs being covered by pro artists, I think that's a testament to just how well Mark crafted them in the first instance. (I'm thinking of that recent TV cover of Romeo & Juliet for example)
Thanks for the compliments, I do wish I had a smidgen of character in my voice! Lucky I'm in a couple of bands that have 'real' singers.