Visiting London for a few weeks (staying with friends in Camden and have been here about 5 days already)... I've been scouring the London boards for dining, etc. recs, and have found some great things, but one search I'm having some trouble with is finding good sources for specialty/imported foods outside of Borough market. I've got Neal's Yard Dairy and some of the Maltby-area pop-ups for cheese, but I'm specifically looking for shops where I can find top-notch olive oil, vinegar, pasta, olives, salted capers, etc. We're cooking a few nights and I'm wanting to procure some proper ingredients. Any suggestions appreciated.