Grid Portal and WS

Do you know of any Java-oriented software that can be used to design and develop a grid portal that will then be used to access and retrieve the contents of a database using Web Services?

My main interest is in developing a grid portal. Could you help? Know of any tools under Sun's banner?

Thanks for reading, and thanks in advance for helping.

Reformer...

PS I will also be using it later alongside various WS technologies(including SAAJ and JAX-RPC, etc).

[490 byte] By [da_wannabesa] at [2007-11-27 2:11:07]