Van Dal (www.vandalshoes.com; 0800 801909) has a great range for wider feet and is stocked at most John Lewis and House of Fraser stores. You can also try www.tallgirls.co.uk (mail order: 01420 587400) which carries a selection in EE;
www.cinderellashoes.co.uk (00 35 357 932 6696) specialises in wide fittings and stocks sizes 8-11 in an EE fitting, from £34-£82. Also, go to www.lushshoes.co.uk and www.elephantfeet.com. As you can see, there are quite a few options for you and your feet!