I would like something similar to iDisk on my computer... V.imarookie

I was thinking of picking up .mac but then I started thinking that I might want more than 10 GB of space. The only feature I would use on .mac is iDisk and the fact that it is in finder and I can drag and drop on this computer and it will be on my laptop and I can access it anywhere. I am not the smartest person when it comes to servers and all. Is there any way I can easily set up a server at home and have it in a folder similar to the iDisk and drag and drop on any laptop I am on? I know there would be a fee for web hosting but where would I start as far as how to do something like this?