What websites are you guys using for your R1 tablets? Any US-based websites shipping them? Particularly, I want to find one that has a 1.83 ghz processor as opposed to the 1.66, 1gb ram and about an 80 gig HD. Any stores you guys could mention would be a great help. I've heard good things about ProPortable.com but they don't have it in stock, nor do they have it in a 1.83 ghz flavor. thanks.