Anybody have / use a good one?  Looking for one to maximize damage.

When raiding i always get the Quickening Jolt from a bloodmage, wait for a crit to pop up, and press the macro as follows:

/cast "Fists of Celerity"
/cast "Quickening Jolt"
/cast "Three Finger Strike"

celerity/jolt arent on global cooldown.
use Aum Kor, psi buff and tell your bard to use "coda of alacrity" in the song, et viola you have 2 min refresh on it also.
Pretty simple macro, but funny because celerity and jolt stack. Lasts long enough for you to make good use of celerity on thousand fists chains or others too. Talk about maximize damage!
I couldn't live without it. Try on General Vicus for some fun 
I wont quote you any numbers for dmg but believe me it's insane 

Yes Errant strikes stacks with quickening jolt, and with fists of celerity however it isn't going to hit for 120k on a normal hit unless you are fighting general vicus or likewise mob, I think the way it is possible that you can miss part of the errant or fists of celerity extra attacks, and I also do not know how it caculates it because it does not always seem to be x2 my normal damage.  Using striking wraps, mine usually hit normally for 25-55k a piece if I have all those stacked.  More if they crit.

BTW Fujitsu since you recommend switching weapons do you have any idea if there is a penalty when you switch weapons, it seems like when I do that it skips at least one round of auto attacks.  With secrets that is a pretty big chunk of damage, for the little damage bonus I would get from switching to a staff for my specials so I have not been using that.

2 things. 
1) I dont think there is penalty for switching weapons, if anything yes it will reset auto attack timer for the new weapon.  This makes sense because people would use a fast weapon and a high dmg weapon and just swap back and forth just right so they get the high dmg attack with the low dly.

2) errant strike/celerity/jolt all stack however i beleive the way they work is they all act indepedently on the original attack. AKA  you WOULD have hit for 4k, so each one doubles the original.   for 3x 4k hits. 
Ala ashen hand for 4k hit
jolt for 4k
errant for 4k
celerity for 4k 

Its easier to see on test with the fixed logs ill go parse it real fast.

I don't understand what you mean by this, fist of celerity doesn't have a cool down it's instant spam.  If you mean that it doesn't take effect right away I have noticed that too when I add it to my macros.  I tested it out by adding it to hammer fist and it didn't go off on hammer fist, but did on Palm explodes the heart.

Didn't i read somewhere that there's a change to the game system that covers macro's coming?
Can't recall where i saw it, but seemed to imply you'd be able to add /pause commands.  I'll look for it and link if i find

I've got mixed feelings on the macro thing anyways.

I'd rather compare myself to a button masher, then someone who's running on auto-pilot.

I just fear another SWG botfest
It's bad enough the crafters are doing it

I

Would LOVE....if they did give us pause.  (granted so long as it doesn't open up a plethora of uncontrolled botting/exploits etc.)

Its the one thing I miss horridly from my eq macro options.