Sounds like you need event correlation. Something we all need within the alert manager. Otherwise you'll really need to look outside the product.
If Solarwinds ran on unix orwere to forward events to a log file on unix you could use a really good opensource tool called SEC (Simple Event Correlater) which can do that and more.
You could run another tool (example is RightItNow) which pulls events directly from Orion.
I am not sure how robust, scalable, or viable LEM is....I don't see us using it. From what I've seen, it does not meet up to our needs.