i am vinod, have done MCA from Panjab University Chandigarh in 2011, for the past 6 months working on Computer Vision and human computer interaction, and planning to go for phd from reputed us univesity, but i have average academics :

10th 47%
12th 62%
BCA 64%
MCA 65%

i have strong programming skils and worked on 5-6 live projects, have 6 months experince as J2EE Trainer. I am preparing for GRE and will definitely score about 80%.

please suggest me some good universities, is these academics are huge problem ?