my 2cents is look for a Dell. I have been using a FullHD Dell XPS lx502 for over 4 years now as my main system, and both Slackware or Ubuntu ( to stay compatible with my bank... ) ran fine. Easy to upgrade, replaced RAM to 16Gb, HD to SSD and wifi miniboard to 802.11ac over the years, and still running strong, although optimus video is a real pain and lately the loudspeakers are getting funny...