We have SRX210/3400s Firewalls, EX4200/4500/8200 switches as well as the SSG350/550 Firewalls. I am trying to pull data such as the CPU/Memory/Temperature. I saw the UnDPs that are out there but they give cryptic charts/tables. The interfaces are numbered weird like "1.0" and the output is hard to interpret. Has anyone been able to get useful information from the UnDP pollers from any of these devices?? I am not "that" great with the UnDP so it is probably "user error" and I just need a little push in the right direction. 
Thanks,
Kim