London-based Americans, help!

And London-familiar Americans, plus non-Americans in London who like American food or have had dalliances with our Colonial cousins …

Does anyone know of good shops for American groceries in London? I've already listed the American Food Store, Panzer's, Bentall's and Ocado's online shop, but any hints will be gratefully received. A dear friend is doing a lovely Thanksgiving favour for some of her local Americans and needs direction!

I, on the other hand, need typing elves and independent wealth. Thanks to everyone who has commented and voted on the Lavender poll, I'll be back with you as soon as I have slain my last act. Possibly with a chainsaw at this rate … Much love to all!