Shop For Shops are one of the best shopfittings companies I have come across. The staff are very friendly and very well versed on the products they sell (they import directly and the buyers have actually been to the factories that make the goods they sell). The quality, likewise, is great (because of their hands on approach to purchasing). And because they import directly, they offer great prices.
Whether you're looking for a complete fit out, or just some additions to your existing store, or even just looking for some coat hangers, paper bags, or other consumables for personal use, these guys are definitely worth talking to.
They offer shipping, and also have a great website you can order from.