Memory utilization graph using RRDTool?

Has anyone ever seen one done? I recently setup lpar2rrd for a project i'm working on. Never noticed that lpar2rrd doesn't have the best memory usage graphs. It's only the whole system but I was wondering is there a way i can add in another webpage that pulls the data from the HMC to collect the Memory usage and use RRDTool to spit out a graphic image for me?

I have passwordless ssh from my machine to my hmc
Lpar2rrd up and running

Any suggestions?