shikatano

You could get another NIC card and use ICS to share the internet into the switch.

Does your school make you authenticate when accessing the LAN? If so, just getting a router may not solve the problem. In my school we have to authenticate through Cisco Clean Access so I have a computer (spare pc running Server 2003) with 2 NIC cards, 1 connecting to the wall and I use ICS to share the internet through the other NIC into my router (WRT-54G). From there I can plug my main desktop and anything I want into the router and even broadcast my own wireless.