DSCL are next on my list as it happens!Given the £1.15 each for the 16×12's when you test, just have them do some of those for you. I wouldn't bother with anything smaller myself. That size just lets the quality shine through. I see a lot of other labs where that sort of pricing won't even get you a 10×8 print. Send them some nice images, and then when you get them back you can go down to your local Wilkinsons branch and pick up some cheap 20×16 frames with 16×12 mats and hang them on the wall for a total cost of under £10 each.
Sorry this is derailing the OP's thread a bit, it hardly covers the costs of up to A3 printing at home in the US, which can beat many good labs if you are careful in purchasing in bulk during sales/special offers.
Oh and I have never considered Asda's (Walmart in the UK) in store printing service to be either that great or that cheap. even when printed correctly the quality is nowhere near to that form the pro lab that is mentioned in this post. The prices, even allowing for £4.50 postage on a £1.15 print are not even close. I paid around £5.00 for 10×8 prints from Asda the best part of ten years ago. 16×12's were about £10 each. I've not used them in years.
Alan
