I don't know why it took me so long to find this. I figure if I didn't know about it someone here might not have heard either.
My wife has an i-pad and I run windows based computers at my office; I wanted to download some pictures onto my wife's i-pad (for a meeting with some prospective clients.) Anyway, it is a pain in the ass doing this (who knows why). But while figuring out how to do it - I found Dropbox which is a really cool system to always have access to your files no matter what device you are on. It works on any operating system too. I can't wait to use this when I am at the Pacific Life Open in Indian Wells this year with all my photos and videos! Woot!
Free, of course. You just drag the files to your dropbox folder and they are automatically accessible from any other computer or device you use (your home computer, your smart phone, etc.) Plus you can access them from your buddy's computer or the library. Dropbox. Cool beans.