I've been doing research for a client and want to recommend the SolarWinds package, with add-ons, but there are a couple of persistant myths regarding SolarWinds that I would like cleared up before I make my recommendation.
Myth #1
Orion does not support clustered servers. Period.
Myth #2
VMWare instances cannot be monitored with only the hardware hosting the instances being monitored
Myth #3
Multiple interface routers (especially serial interfaces) cannot be monitored. [I'm pretty sure I know that answer here, but thought I'd post it just in case]
Josh