Sprung, from our forums just let me know that he's been working diligently, uploading EVERY US Dreamcast release to Rapidshare. He's listed all the links in a thread @ EPForums and well you can head there and rapidleech these links if you're interested. From the thread:

This thread contains Rapidshare links to every Dreamcast game released in the USA. All games are tested and verified working, and 100% compatible with any Dreamcast that is MIL-CD compatible. Check here for MIL-CD information.

We also have every Dreamcast US release (also uploaded by Sprung) hosted here at emuparadise. However, you're likely to get better speeds at rapidshare and also end up saving some of our precious bandwidth by using the links provided in the thread :D

So take your pick, you won't regret it either way. Don't forget to thank Sprung on your way in!

-> Sprung's Dreamcast Release [RS]