Lenovo ThinkPad X61s (7667) - full specs, details and review
Best Buy: Lenovo 12" ThinkPad Notebook 4 GB Memory 80 GB Hard Drive Black X61-2.0C2-4-80-X-7P
Using thinkpad X61 as my daily laptop : r/thinkpad
2GB Memory RAM Upgrade for the Lenovo Thinkpad R61 Series, T60 Series, T61 Series, X60 Series and X61 Series Laptops (DDR2-667, PC2-5300, SODIMM) at Amazon.com