I am away living at college, my college uses a wireless internet, that leaves much to be desired. The problem is that when my computer tries to connect to a game or uses a lot of bandwith the internet is set to block me from accessing it anymore, for 4 hours to be exact. I try to connect to games like Counter Strike Source and Call of Duty 4. Is there anything i can do or buy to not have this happen? is there a wirless internet booster or something, i have no idea.

Sounds like the school's admin has a limitation on bandwith useage. Ask around and and find out what exactly those limitations are.

Yea they have a limitation on usage, is there any way around it? 

you might be able to get around it using a VPN connection. But that will only work if you want to play amongst friends and use a vpn network to create a lan game. Hamachi is a program that will do that for you automatically, but it can be difficult to tweak if things dont work right off the bat. But other than that i dont see any way around it unless you pay for your own internet service and not use the schools.

 get the school to up the bandwith...