Hi all,
I have a bit of a problem. let me explain:
I know how to install and configure sharepoint server 2007, i just dont know how to implement a web front end server.
I have been going through the microsoft documentation and it seems that im looking for the Split back to back topology: 
Design extranet farm topology (Office SharePoint Server)
Let me explain what im after and maybe you can suggest something:
I want our users to be able to access our sharepoint site from home. They need to be able to upload documents and use it as though they were here at work. I want the internal network to be the main focus, but i need both the internal and external networks to replicate to each other, while the external network is separated from the internal network, as to stop security issues, a firewall will also be placed between them both.
Does anybody have any ideas, am i on the right track or am i missing something?
thanks.