Getting into good MS Computer Science despite lukewarm LORS?

<p>What kind of schools (in terms of rankings) should I realistically be looking at for a MS in Computer Science?</p>

<p>Undergrad Majors: Applied Math + Operations Research
Undergrad GPA: 3.53
GRE: 165V/162Q/5.0W</p>

<p>I’ve been working for a large internet company for about a year as a web developer since college. My undergrad was top 5 in nation.</p>

<p>Unfortunately for me, I don’t really know any of my professors from college well enough to expect glowing LOR’s or anything.</p>

<p>Are the following schools realistic for me:</p>

<p>USC
Columbia
Brown
NYU
UMass Amherst</p>

<p>Should I be aiming higher, lower given my likely ho-hum / lukewarm LOR’s?</p>