Obtaining a 2nd Jaguar x-type key

[Shnozz]

Hi chaps, I need to purchase a second key for my x-type. The dealer has been rather vague but suggests its about £50 for the key and an hours labour to programme it so around the £150 inc VAt mark.

I note that ebay sell some programmable Jaguar x-type keys and wonder if there is an easy DIY way to programme the key or whether it is reliant on Jaguar computer systems or some clever technology only the dealer has access to? Any advise?