Network management

I an not sure if it is appropriate to ask this here, but i will anyway!
Is there a network mamangement platform of choice fo r building a NOC. We are in the process of designing our noc from the groud up and would appriechite some input. We rare leaning twards Openview, but would like comments from others.

thanks,
Stan Helewics, Network Arcitect
DTI Inteernet