Hi Ray
Have you seen this podcast from Seagate about ReadyDrive. Features their Seagate® Momentus® 5400 PSD hybrid drives.
http://www.podtech.net/home/3805/seagate-announces-hybrid-drive-for-laptops/
They seem quite well priced at the moment at Aprox £92.00+VAT for 160GB
http://www.span.com/catalog/product_info.php?products_id=8276
scottbelton@tiscali.co.uk