i blew my knee out at the beginning of the season in '07. you will find things to do with your time, trust me. you will be a professional boat driver like i was.
the bone you broke.. was it the metatarsal bone? if it is the one that connects to the little toe than it is called a Jones fracture. i broke the second, third, and fourth metatarsal in my right foot last semester and i was out for eight weeks. i had to have a cast for six weeks and a boot for two weeks. and i got back out on the water about a month afterward....
this is what Wiki has to say about Jones fracture:
If a Jones fracture is not significantly displaced, it can be treated with a cast, splint or walking boot for four to eight weeks. Patients should not place weight on the foot until instructed by their doctor. Three-fourths of fractures treated like this should heal.
In the case of acute fracture in an athlete, a dynamic compression plate can be placed on the tension side of the fracture, K-Wire with Monofiament wire in a figure 8 fashion due to the nature of a transverse fracture. Internal fixation with cortical or cancellous screw would require an oblique fracture that could be addressed through "The rule of 2's" in regards to Internal fixation with screws.
Other treatments commonly encouraged are increased intake of vitamin C and calcium.