Here are some links to websites addressing the one computer classroom
Ideas for the one computer classroom such as room arrangement management scheduling, classroom modeling. http://danenet.wicip.org/mmsd-it/tlc/1comprm.html
The possibilitites, across the curriculum, issues and other links and resources http://eduscapes.com/tap/topic84.htm
How to Thrive -- Not Just Survive -- in a One-Computer Classroom : management, planning, organizing, activities http://www.educationworld.com/a_tech/tech/tech092.shtml
Ideas for the one computer classroom

http://www.christina.k12.de.us/techlearn/staffdevel/one-comp-class2.htm

But I Don't Have a Computer Lab! Using One Computer in the Classroom http://www.serve.org/seir-tec/present/onecomptr.html