these are all available for the same price where i'll be purchasing. narrowed down to these as 16" screen size would be ideal. the 56 and 59 have LED and seem to be a little less weight but not sure what the difference is between the two. the 20 has a slightly higher MRSP with standard LCD display. not sure if there's that dramatic of a difference or not. any ideas here? i've used a couple HP's for the last several years and haven't bought a new notebook in a few. need to pick one of these up within the next 2 days. thanks guys.