Digital photography

I've used Print Space, but other than their niche items I didn't find them any better than ProAm, where an 18x12 is £1.25 (not too indulgent)
http://www.proamimaging.com/

While I do work for theprintspace so you may see this as slightly biased, I just wanted to add a little to this.

While ProAM do seem very affordable and run a similar structure to us (DIY file preparation drastically reduces the cost) their only real comparative product is their "large format" section under "fine art prints" where they also dont mention the inks they use or the archival quality of their products, which leads me to assume that they dont use archival inks and that their products would not last as long.

Otherwise they do actually seem like they're pretty good, not many companies that offer cheaper prints like this also offer the ability to control the accuracy that you'd get from a pro lab (using paper profiles)

they're also in bradford which means they have cheaper rent I suppose!