So I'm leaving my sprint service for a more cheaper plan (i.e. Straight Talk $45 or $35 T-Mobile prepaid). So I'm leaving the Android OS and coming back to Windows as that is my most favorable experience of all three majors OS's. But, I don't have much after paying my etf and was looking into some WP7 and WP8 devices. But from what I see there are many to choose from ever since I left my HD7 in March 2013. I was looking for a WP with a big screen and decent storage (if possible expandable) and can't go above my $250 limit. Any thoughts?