In reply to Milesy:
I haven't tried the Rebel Lite - but the description sounds like the Charmoz would be a better choice for ice climbing - and I know plenty of people who only ever wear fell shoes or Charmoz (or whatever the Sportiva equivalent is called), so they're not a bad choice for general mountaineering, particularly if that includes harder scrambles where a stiff boot is a bonus.
Not a lot of help, I realise...