ProLiant Support Pack - Which tools are senseful ?

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hello,

i'm running two ML 350 G4p and one ML 350 with SLES 10 SP1 64 bit. On one system i'm testing the proliant support pack (ver 7.80).
I installed the System Management HP and the hpadu and hpacu tool. With these i'm able to view and configure the RAID-Controller. In the PSP are included a lot of other tools. Which are senseful and what is their purpose ?
E.g. for what is
- HP System Health Application and Insight Management Agents
- HP NIC Agents
- HP Insight Diagnostic Online Edition
- Cooperate these three tools with the HPSMHP ?

Thank you for any recommendation.
Bernd