I take the "Stat Priority" post as good a place as any to discuss guardian DPS tactics.
I leveled at Vigilance and ended up working out, what I felt, was a pretty good rotation. You have it right, essentially, but it heavily depends on your choice of talents. For instance, if you have momentum, you're going to want to use your blade storm sometime before you use your Plasma Brand/Overhead strike for the free focus generation. If you don't have momentum (in the Defense tree) then you'll want to save blade storm for later.
But I guess the "generic" guardian priority rotation would be (ignoring need for focus costs):
Master Strike
Dispatch
Plasma Brand
Overhead Strike
Force Sweep (if you have Effluence)
Blade Storm (If you have Burning Blade)
Force Stasis
Force Push
Slash
Sundering Strike
Strike
(To those unfamiliar with reading priority lists: the first ability in the list is the one you use if it's available, if it isn't, then you continue down the list checking at every Global Cool Down if the top of the list is ready / available yet.)
That's my opinion of it anyway. I'm going to be doing some dps testing later tonight in Eternity Vault. No meter, but we did some attempts last night (I was pvp specced [focus] at the time, so I'll just judge if my dps increases based on our ease of kill or not.)