Cyber Cafe system setup…

I recently started working for a PC Consulting Company. I have this project for a Cyber Cafe, that needs the following : 10 PC’s ; 8 for general public use, and 2 for ADULT use. My client wants to have a Server, I don’t thinks he needs one though. What is recommended, DSL or Cable? The 8 PC’s are in groups of 4, so should I plug each group of 4 PC’s to 1 Router and the 2 ADULT PC’s to another Router? Or could I use Hubs? Given this info, using the DSL or Cable Modem, connected to each Router, etc… Would a T1 line be advisable or what Connection Speed be recommended for this kind of setup? ASAP !!!