[all variants] which distro for Thinkpad w510?

view story

http://ubuntuforums.org – Just got refurbished Thinkpad W510 [model 43195RU,bios 1.31, with i5 M520,2gb RAM -should do some upgrade here] And wondering which Distro would you recommend? Dualboot with Windows 7 PRO I see someone has Ubu 10 What about Kubuntu, or Mint with Gnome? See some issues here with Linux. My old laptop runs Mint LXDE dual w XP just fine. (Hardware)