...I purchased mine from PC Progress - it actually came to $528 (for two) after shipping, and that was back in december.. It doesn't look like they carry the 10gb unit anymore, but they seem to have a 12gb toshiba (8.5mm) for $289 ...Here's a direct list of their notebook drives

Also, try going to pricewatch.com, and checking their "notebook drives" category...
-mark


...proud to have one of the first Mark I units