GRE 306/TOEFL 103/75%/6.5 years exp/Computer networks

Hi All,

I am looking for profile evaluation for below universities for COmputer networks. My deatils are:

GRE-306(156-Maths, 150-Maths)
TOEFL-103
Degree-75%
Work exp - 6.5years

I am planning to apply for below universities: (I have included fees and deadlines also). After going through the list, can you please let me know the chances of getting the admits in these universities? do I have to retake GRe again? as many universities look for 160 quant score????(I am confused with Quant-156 score ), but deadlines for many universities are around Jan..I am not sure what to do??please suggest me few tips..

Computer Networks:
Best:
Carnegie Mellon University -Feb 1 - ambitious - $40,000 - 4256
University of Southern California-Jan15th -$40,000 ?TOEFL scores, If applicable : Institution Code: 4852 - Safe

Good:
Columbia University - Feb15th - Moderate - $40,000
University at Buffalo, SUNY - Must Jan1st - apply quickly - $24,000 - Safe - 2925
Virginia Technical Uni - Jan15th - Moderate - $23,000 - TA/RA

Nice:
University of Florida(UFL) - Yes - Feb 1st - $24,000 - scholarships are available - good RA/TA - 5812
University of Illinois at Chicago - UIC -1851- Feb 15th - $24,000 - good RA/TA
Cleveland State University, Ohio - May15 - Future
University of California Santa Cruz -
Ohio State University - ETS: OSU code is 1592- Jan15th - Moderate - $30,000
University of Texas, Dallas - Yes - May1st-A: UTD 6897 - $21,000 -

Thanks and Regards,
Sarat