Everything I have read and seen he loved doing Law and Order UK. The problem with British television is that ratings don't mean anything. Something can have high ratings and they will still cancel it if they decide it cost too much and that show (like it's American cousins) was 85% location.
I do hope he ends up starring in something on USA, AMC or one of the paid cable channels. In all honesty I never felt that Moore used him all that well on BSG until the last season then of course it was too late. I was very captivated by Matt Devlin and can't help but think Moore was too since apparently Jamie was the first person he cast.
He's a gem he will shine soon enough! =)