FIle Sharing from anywhere, USA

What is the easiest and cheap way for me to upload and download files to my home server (Windows 2000) so that I can share files with others?

I started to use ClarkCOnnect but it is a little confusing since I don’t know linux. I am open to any suggestions or if there is a “FTP for dummies” or “File Sharing ABC’s” book that can be recommeded.

I understand the concept of FTP and willing to try any options.