update - paypal and ebay have been ok - refunded everything but the 2 delivery charges so I am only £40 down at the moment, hopefully will get that back in 7 days.
Unfortunately 2 of the items have been dispatched, not my problem but it means the scumbag will likely get something. Seems what happened is quite common, as ebay gave me my account back almost instantly, changed all my details back - the fraudster had even hidden the purchases hoping I wouldn't see them, and I guess I wouldn't have noticed for quite a while if paypal hadn't been sending me receipts.
Lesson learned!