I'm finally working up a wine surplus now and have to think of better
storage than, say, keeping the bottles in boxes upstairs. I am doing
some brewing also, and have them in boxes downstairs. None of this is
very aesthetically pleasing, let alone very organized. I was wondering
of ways to display the bottles, with the option of covering them from
sunlight. Has anybody done something like this?

I was thinking of these cube arrangements:
http://tinyurl.com/7c8dt

Although I'd probably have it longer than higher, slightly smaller
cubes, and not so expensive. It might even be a DIY thing (because if
I'm making my own wine then I try to DIY everything).

I suspect a nice curtain that can be pulled together can cover it up
during the day when nobody's around but the UV rays.