I am working on putting together a new computer for work and gaming. I have seen a ssd + hdd set up touted on this forum but never a specific answer to this question. So other than the os what goes on the ssd? Should games go on the ssd or the hdd? should things like microsoft office go on the SSD?
Put the OS and frequently used apps and files on it.
Use the hard drive for storage, and backups if your SSD can't comfortably hold everything.
For planning purposes, Windows-7 and microsoft security essentials will take about 15gb.