IBM 42W2526 Lenovo ThinkPad R61 Bottom Base Kit 45N4135 with Accessories NEW Kit
Refurbished: ThinkPad Laptop Intel Celeron 540 (1.86GHz) 2GB Memory 80GB HDD 15.6" Windows 7 Home Premium 32-Bit R61 - Newegg.com
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
2GB [1x2GB] RAM Memory Upgrade for the IBM Lenovo Thinkpad R61 and R61i Laptops | eBay