Just to update, car is still in for forensics but the guy was arrested and remanded back into custody yesterday. Fair play to the police, they have been excellent. Didnt expect much given burglaries tend to have a low priority, but they identified the guy in a couple of days.
Most of the evidence is circumstantial (CCTV, phone records, and a taxi collecting/dropping him off one street away from where the car was found), however he also stole a watch that I'd completely forgotten I had in with the car key. He had it on when he was arrested, and admitted he'd nicked it from ours, so fairly banged to rights. Surprisingly the watch was returned the same night.
He was charged with 11 burglaries and 7 driving offences in the Cheshire area.
Now upgraded all locks to 3 star with 2 star handles, slight overkill but it wont happen again.