Bought refurbished, from lenovo outlet with one year warranty.

One was bought two weeks ago. Didn't really use it except installing windows 2007. Just in like new condition. The model is x220i.
i3-2320M (2.3GHz), 8GB RAM, 320GB 7200rpm, 12.5in 1366x768 LCD, 720p Camera, Intel HD Graphics 3000, 802.11bgn wireless, WWAN option, 1Gb Ethernet, UltraNav, 6c Li-Ion battery, Win7 Home 64, 3.5 lbs.
Asking for $520. Can also install a brand new kingston 64GB SSD msata as a boot-up drive if you want it for $80.

The other was bought 2 months ago. In Mint condition. The model is X220 4286CTR. i5-2430M (2.4GHz), 6GB RAM, 320GB 7200rpm, 12.5in 1366x768 LCD, 720p Camera, Intel HD Graphics 3000, 802.11bgn wireless, WWAN option, 1Gb Ethernet, UltraNav, 6c Li-Ion battery, Win7 Home 64, 3.5 lbs. Can also install a brand new kingston 64GB SSD msata as a boot-up drive if you want it for $80.
Asking for $550 for this one.