I've used Calumet for a number of years now. They've always been very helpful, offering great advice and sales/after sales service. Recently needed a couple of Sandisk Extreme Pro CF cards. Checked their prices online, very competitive. Could have had them delivered free of shipping but chose to collect in store instead. Could have been in and out in less than five minutes but Drummond Road were having a sale. On the counter were two manfrotto 035 clamps with spigots, £15.00 each - bargain, can't even get them on eBay at that price. Got an even better deal for buying both, result! Well happy, left within 15 minutes with two 32gb CF cards and two clamps - brilliant prices! Where else can you do this at these prices?! Couldn't recommend Culmet more highly. Oh, and check out their workshops at the Calumet Academy as well. Great range of excellent workshops by some of the Industry's best and biggest names in their field - again really well priced.