[amw1972]

I beg to differ about the media apps...here's a general idea about how mine are set up...and it has been stable and lag free...

media (Coreplayer, nitrogen, midomi, groovefish)
all installed on SDcard.
games (unless specifically required to be on main memory)
installed on SDcard.
any Navigation/GPS related apps (GPSToday, Sprint Navigation[Telenav])
installed directly on device
any User Interface tweaks, system related apps, operating system related apps (manila tweaks, advanced config, nueTools, etc)
installed directly on device