Phill ( my housemate, and good Cossie spanner man ) will be busy Sticky! The diff on Doug's post also had a bit of Phil's handiwork in it - he removed it yesterday, and will find himself divided between the two cars sorting them all out!
Phil / IMA / Bosch dude has made me a very kind offer which I'm taking up to get my injectors tested - we'll see if that was the problem...
Thanks for your support guys and Stu for your expert eye!
Si