Southeren illinois edwarswille-Good prospects for CS,tough course work, Good oncampus jobs,Nasty area, small town.
Uncc-Good place,less GA's top rated for CS.
IIT chicago-Super Unvi,Very tough course work, More on campus
ETS Mock Test
http:/www.ets.org/gre/revised_general/prepare-download powerprep software it has 2 mock which are close to exam standard
Mangoosh(Free 1-week access to over 20 less