Since this is in the Engineer's Toolkit forum, I'm going to assume you are using the toolkit for your data collection. You can use the Bandwidth Gauges, Real-Time Interface Monitor, Traceroute and WAN Killer. I don't recommend doing this on a production network!! You start up either Bandwidth Gauges or Real-Time Interface Monitor (or both), and start monitoring the interfaces of your switch or router. Then start up WAN Killer and send traffic over the link. That will give you the graphics you are looking for with regards to utilization. Traceroute will provide you with a point in time graphic of quality. All of this data will be collected under the best of conditions with no competing traffic, so it will be a clean point-in-time view, and not a real world view.
HOWEVER.....
IF you have Cisco gear and have NPM, VNQM and NTA, then you can get really crazy. NPM will provide continuous availability and utilization stats. With VNQM, you can configure IPSLA to monitor WAN quality. And with NTA you can tell your management what traffic is causing the pain. In my opinion, based on your comment about latency and quality, NPM and VNQM are the correct solution at a minimum.
D