For those that are interested I used overnightprints.co.uk and found the ordering process on the website very smooth. As I was short of time I paid for the express service and they turned up on time without problems. I had an email from them the day after the order to query the image bleeding of the card dimensions but I was able to quickly confirm this was correct so my order could proceed. All in all a good first experience with this printer.
Painted in Photoshop from photo reference.
The printed cards.