Utility for Visualizing Network Traffic via SNMP

I'm looking for a piece of software akin to Cacti, one that is preferably much easier to set up, and has a high-quality frontend to it. I had a headless Linux desktop that I used to poll my Time Machine and graph network statistics off of, but that computer is currently undergoing repairs, so I'm left with the remaining computers I have in the house, which are all Mac. I have no specific requirements that I consider as a sticking point. My baseline of features would be something with the granularity that Cacti/RRDTool provide. Graphs with scalable units of time/history (configurable is a plus!), quick/easy to get started with little installation is preferable, something that perhaps just runs as a daemon/program and doesn't require a web server and detailed tailored configuration (read: discovery) would be just fine, and possibly even preferred.