> As a side note and since you ask, the indexes on this database are fairly well thought out, I have exhausted all ideas on indexing improvements to help with performance. I do mention a major implementation enhancement which is to precalculate monthly totals.

So, this is what Data Warehousing is all about: reporting related optimizations (typically what monthly totals and such are aimed at). The idea being that you trade disk for speed., so that kind of optimization is actually pretty normal if you've identified it as a bottleneck. There's no need necessarily to separate data warehousing constructs into another DB, though it's often good practice because sooner or later you're going to start running into problems on your important system related to storage inflation and non-indexed sorts/filtered.