Eh, you don't need 100%. I never notice the difference on TV. But I don't have HD TV or anything, just a regular TV. So, it probably doesn't matter for me.
I love my 10" averatac. I'm not sure if size is something she's looking at. If she wants it for more mobility then get something small but if she wants a desktop replacement then she'll want one with a bigger screen.
You can look into HUD houses. They are usually cheaper and might need some work.
http://www.hud.gov/offices/hsg/sfh/reo/homes.cfm
Click on ohio then it sends you to this page.
http://www.mcbreo.com/st_ohmain.htm
Seems like they handle listings for them?