Update: The price on the original Kindle DX has now dropped to $359 (with global wireless). For the $20 difference, though, I'd order the Graphite Kindle DX with the improved eInk screen.
Here is a current list of all the refurbished prices, which appears to subject to change at any moment. First, the US versions with Sprint wireless coverage:
- Kindle (6" Display, U.S. Wireless) ($139.99)
- Kindle DX (9.7" Display, U.S. Wireless) ($249.99)
- Kindle (6" Display, Global Wireless) ($169.99)
- Kindle DX (9.7" Display, Global Wireless) ($299.99)