Not really sure about specific player created Macros, but I'll give you an idea of what I use on my shortcut bar. Right now I have everything on one bar, but that will quickly change. This is how I play to set it up.
Bar 1 (1 -> =)
All my cure spells, and if I can fit them, my buffs.
Bar 2 (Ctrl 1 -> Ctrl =)
Attack spells and HO starters.
Bar 3 (Alt 1 -> Alt =)
Anything else that doesn't fit in the above. Enduring Breath, Revive, etc.
I tend to either target the monster the main tank is fighting (so I'm targeting whoever it is targeting for healing) or I target the main fighter so I'm always targeting what they are targeting. I'm still getting used to the Implied Targeting. I'd like to thank Falling who I killed about 6 times the other day because I'm still not used to it...