I'm in London (Islington/Hoxton ish) at the moment (with my Aeropress in tow). The Aeropress is great for what it is (a nice strong clean filter coffee, to which you can add some milk), but it won't make something that you recognise as a latte. I make 3 nice Aeropress coffees per day, and walk down to Old St every couple of days to get a very nice latte from either Ozone or Shoreditch Grind. I'll be honest and say that I didn't exactly enjoy the single latte that I have tried from Gregg's, but it was at least drinkable and innoffensive (and I've tried plenty that I couldn't finish). The Nespresso thingies (with appropriate add-on) can make something that *looks* vaguely like a latte, but not many people on this forum will have anything good to say about the flavour of what they produce. If you like filter style coffee, the Aeropress is fantastic value, when teamed with fresh beans (I've been using 'Hasbean' and they are very good) and a grinder (I use a Porlex Mini hand grinder). If you are really keen on something that more closely resembles what you see on the High St, and don't want to spend the earth, then maybe a Gaggia Classic (or similar) + grinder might be worth a pop. If your budget is more flexible, there are lots of options open to you, at several price points. People will be able to provide less random advice if you tell us a bit more about your budget / preferences.