| First, check scottkeen.com/forum
Second, my new table is 40"x88". It is 8" shorter in both directions than a standard 4'x8' table. It will comfortably fit 9, and 10 can squeeze in. I have not tried 11. It is still hard to deal from the ends. When evaluating table size, you need to calculate circumference. As I recall, 20" is a bare minimum per person, 22" is ok, and 24" is preferred. curves seat more people than straight sides. Again, check the scott keen forum.
Even if you go with an oval table, don't go 48" wide - 42" works just as well and only decreases circumference by about 6".
Good luck
L | 
