Tony,
Congrats on the new Tyros. BananaPC has a 40 gig notebook harddrive for $67. The Hitachi Travelstar 4K40 series is a 9.5mm high, 4200 RPM, 2.5-inch mobile hard disk drive. They offer free shipping, although I'm not sure that includes to Mexico. Here's the link to the site: http://www.bananapc.com/products/product...g=40832439&Op=2

I've ordered from them before and had good luck.
Ron