nikkey

Ok i would like to know if i can use a Hub to network with my xbox 360? My ISP allows 2 ip's to connect through 1 modem and i only have 1 pc so theres still room for the 360. Since routers are more pricey and from what ive sen can be trouble when it comes time to play games online / transfer files. Will i be able to stream files to my 360 still if i use a Hub or do i need to install a ethernet card into my pc and network it directly to my pc? I plan to go pick up an ethernet card or a Hub come next week but im unsure which would be best.