Advice welcomed

Hi ther.

A few days ago I posted a question about this, but received no answers. So I have decided to ask again.

Can you tell me if it's possible to use two computers connected to the same internet connection at the same time. One to stream data out, the other to be used for up/downloading, emails, and other general tasks.

In a nutshell, I am looking to create a streaming radio station from my interent connection, whilst still retaining the ability to use the same connection for other daily internet related duties at the same time.

Whilst I beleive it's possible to do both with the same PC, and this is something I could try, I am not certain whether my P.C would be powerful enough to support both the outgoing data stream and all other general tasks at the same time. This is why I thought of using two P.Cs at once. However, with my present set-up, I have two seperate P.Cs, both with their own Thomson Speedtouch modem. If I attempt to log-on using both P.Cs at the same time, neither will make a connection. So, presumably I require a router?
Not sure if this would then allow me to do what I am trying to achieve.

Can anyone shed some light on this for me?

My internet connection is 2.2meg Broadband.

My main P.C is a Pentium 4 540 @ 3.2gb - 512mb RAM
My back-up P.C is a Athlon 2800 - 1gb RAM

 

A router is what you need.