beowulf software administration and c/fortran compilers

[Zubin]

Hello, I am about to build a beowulf(4 nodes).  I want to purchase the
software as a commercial grade, "cluster kit".  Has anyone purchased the
Portland Group's "Cluster Development Kit"?   Would you recommend for
administration, and application development.  Easy to install and maintain
with tools?

If Portland's not the best "Kit", can someone recommend an alternative?

I want to focus on the development of my algorithms, and not the
maintenance/setup of the beowulf.