I've been using Printed.com over the last year or so and couldn't be more chuffed with their service. Major advantage is the easy upload and quoting service on their clear and friendly website. No more waiting on printers to come back to you with prices! Their stock range is great, their print quality is fantastic (Indigo presses -YAY) and their turnaround quick and reliable! They're constantly improving themselves upon customer suggestions and come back to you pretty pronto when you email them a question. I'm a big fan - can you tell?