you might want to check out Cloudtrade. They just launched a beta test which is available on all windows mobile phones. Cloudtrade (beta) allows you to upload 1GB of your content from your computer and lets you access the content from your phone.
check out more info at----
Welcome To Cloudtrade
here a video of someone using cloudtrade---
http://www.youtube.com/v/Dw-FbMmIIUw