[c-nsp] OT: SNMP Trap manager recommendation

[Justin Shore]

I'm in need of a decent SNMP Trap manager that scales and is free (OSS) 
or cheap.  I currently Nagios for my NMS and Cacti for data collection 
and graphing so clearly I'm a fan of OSS solutions.  I read an article 
several years ago in the now defunct SysAdmin magazine on tying in 
SNMP-TT into Nagios.  Is there a better way?  I need to collect traps 
from Hatteras equipment mainly but once I have it I'm sure I'll use it 
for other things as well.

My searches have so far turned up JFFNMS, OpenNMS, Mila NetWhistler, 
NetCool (expensive?) and a few others.  There's also the GroundWork fork 
of Nagios and other OSS tools that may be useful.

Any recommendations?  Thanks
  Justin