The main focus is books -- vast, huge numbers of books. 893 at current count, and I'm still sorting stuff quickly: the plan is for the sale to include about 1500 books, and much of it is very high-quality, with a lot of depth in topics ranging from history to science fiction to heraldry to cooking.
There's also going to be lots of other stuff: garb, CDs, perfume, and a bunch of other miscellanea. (Yes, a bunch of it is Jane's stuff looking for a good home, although a lot of my stuff is also going to be included.)
Yes, I know the date conflicts with Endgame. Sorry about that, but there's no such thing as a free weekend. (And it's better than conflicting with Coronation.)
So please mark it on your calendars, and come on by. I expect to run it both Saturday and Sunday, probably in typical college book sale fashion: something like $2/book to start with, and finishing up with buck-a-bag on Sunday afternoon once the very best stuff has been picked over.