Just to comment on Andy's post about the game we ran at Peterborough. I had planned a normal size game of about six or so groups, but we had a big turnout so I shovelled a whole load of additional toys on the table to try to accommodate the numbers. A normal force starts off at about 40 figures, so no need for huge armies. I find that helps motivate me when painting, knowing that I can see the light at the end of the tunnel.
Rich