A new Parkson Department Store 百盛 (Bǎishèng) has openedon Qìngyáng Lù (庆阳路), a few hundred metres east of Nánguān Shízì (南关什字). Map. It's got 5 floors of all the usual department store sections, but the 3rd floor supermarket is quite high-end for Lanzhou: easily the best selection of imported wines, spirits, beers, ground coffee, tea and snacks in the city. It's not cheap (who's going to spend Y20 on a small bottle of mineral water?), but on the whole the prices are typical for these brands. No fresh produce or dairy. If you are into cooking western food, Bai'an is still the place to go. See here for more imported food and drinks.
All the pages listed above have been updated to some extent over the past week, especially 'Things to do'. I've also added a page for 'Parks'. If you have ideas for more additions to the listings, contact me.