I'm eagerly awaiting the SharePoint 2010 Administrators toolkit to assist with performance testing. We'd like to setup multiple configurations of hardware/topology to determine the best fit. I'd like to use visual studio or another application to run load/stress/performance test against these different deployments to SharePoint 2010 to get some metrics back for comparison.
I'm interested in page load times (cached and non cached), search result times, RAM/CPU utilization. I'm sure more metrics will pop up that we need too.
Has anyone attempted this? Are there any helpful resources?