E30 Zone

Just changed my plugs and there all pretty oily, whats the most likely cause of this? (ie what do I need to replace/rip to bits!)

If your plugs are oily then you should be able to see blue smoke from the exhaust.
Are you sure it's not fuel?
If it is oil it could be anything, possibly valve stem oil seals if you are lucky.
Get a compression test done to check cylinder bores/piston/ring integrity.

oily might mean piston rings, do u get smoke on start up? or mabey a gasket faliure lettin oil in at the head? not good either realy

get a compresion test done if u know of a good garage or spcialist to see if anything is wrong

also, not sure if any of what ive said is right so dont get too woried , i have been known to get it wrong , hence the Ono part