Prompted by Kops' suggestions on cables, I've changed things round a bit - Cardas now is Pre-Power, and I've changed the CD-Pre to a vdh 'The First' which has certainly tamed a bit of glare! It also seems to give a little more body to the sound, while rolling off the treble a little.
I'm not in a position to purchase new cables just yet, as I've just bought the Bel Canto, the Lumleys and the Nordost cables within the past 3 weeks (purchases made necessary as I'm moving from ATC SCM10A-2 active monitors).
Ckoffend advice sounds good to me - I really don't want to get an overly warm sound at all; really just a subtle shift to the warmer side. I'm enjoying the transparency of the sound at the moment and I'd be lothe to lose the systems strengths.