Flot is very flot.

So, my goals for flot are rather simple.

Graph two lines (check)
Have a zoom-able overview (check)
Have the x-axis with dates (check)
Have float-over tool-tips that reveal data
Have a legend to distinguish the data points from the average points
highlight points that are outliers in some way.

So, three down, three to go. The interface for flot is very nice, and more importantly, the examples are excellent. They've been helping me tremendously.