Creating dial in connection...

Hi Everyone,

This may sound a bit of a weird question but I'm hoping someone can come up with an answer for me. Here goes:-

I want to set up some way that I can dial up using my Laptop and mobile phone to my home number (obviously when I'm away!) and my XP PC at home answer. I then want to be able to set up some sort of authentication so that I am the only one that can connect and then once connected to be able to access any shares available on the XP PC and, more importantly, get access to the internet.

I have mobile broadband but I visit certain places in Scotland that it doesn't work. I also, sometimes, need access to my files at home.

I hope I have explained this OK. Please help!!!:P

Come on guys!!! Somebody must have an idea if what I want to do can work or even better, come up with a completely different way to do what I want to do... PLEASE ADVISE ME!!!