Is there anyone near Swansea that is a dab hand on migs? Only had mine 6mths, but it needs someone who knows what they're looking at!
I think I have an oil leak underneath at the back of the block, but not knowing much about cars, couldn't be more specific. Whilst looking at it, I noticed a hole on the exhaust pipe, drivers side just below, what looks like a sensor.
Would be nice if someone trustworthy would be able to help and advise me?
Cheers guys. 
The only sensor on the exhaust is the cats...if its not blowing then most likely its just a hole in the heat shield wrapped around the cat...in which case nothing to worry about...good chance the oil leak is a leaking cam cover gasket...fairly cheap and easy to sort and caused by your breather system blocking up...keep the breather system clean and the cam cover gaskets shouldnt blow 
It's not the Cat. It's further forward on the pipe where it moves vertical towards the block. The sensor I mentioned looks like it's sticking "out" of the pipe. Maybe an inch long. The hole is between these 2.
Went to my local Vx dealer, who kindly tells me it's a single pipe, from the block to the other side of the Cat...£379+ Vat excluding fitting!

Big ooops.