[galaxy-user] window and merge workflow?

Hi, I have two datasets, both from the same cell type and same genome build. One data set is chip-seq, windowed at either 1MB or 100Kb. The other is from a tiled array, with probes placed ~2-3kb apart. I want to window the latter at either 100Kb or 1Mb (an averaging of the values will suffice), and then intersect the two data sets so that for each window I'll have two data points: the chip-seq and the tiled array values. It seems like this should be possible using Galaxy, but I'm struggling with what the workflow should be. Does anyone have a workflow, or suggestions? Thanks in advance, David