Hey guys whats up.

I was wondering if anyone here knows how I can go about setting up something like this.

Basically,

Block ALL websites, except for

http://www.whatever1.com
http://www.whatever2.com
http://www.whatever3.com

and the most important thing I have to be able to do is.

In order to get to http://www.whatever.com use our network at the main office.  <-- The reason for this is
because www.whatever.com is only taking in requests from specfic IP's so the request has to get forwarded
to our network and then go out.

What software do I need (if I need any?)  And is this possible ?

I am running W.R. 0.9

Thanks a billion
ScarEye