just to chip in my 2c
here is my PVE and PVP castsequence macro's (have it bound to F-key for pvp, and Shift-F for pve)
besides that i have Shift2 for earthtotems (1earth,1tremor,3stoneclaw), Shift3 for fire (1 tow, 4 searing), shift 4 for 4xhealing/1mana, shift5 for 5x grounding
above that i have alt3 for 5x firenova, and alt4 for magma, to easily drop those

PVP:

1: /castsequence reset=15 Totem of Wrath, Grounding Totem, Earthbind Totem, Healing Stream Totem
2: /castsequence reset=15 Tremor Totem, Grounding Totem, Healing Stream Totem , Searing Totem
3: /castsequence reset=15 Grounding Totem, Tremor Totem, Healing Stream Totem , Searing Totem
4: /castsequence reset=15 Grounding Totem, Healing Stream Totem, Tremor Totem, Searing Totem
5: /castsequence reset=15 Grounding Totem, Mana Spring Totem, Stoneclaw Totem, Searing Totem

as you see i frop 3 staggered tremor totems, 1 earthbind, 1 stoneclaw (the 1x stoneclaw to keep of hunterpets (taunt works on pets) or keep of pve mobs in AV)
also 1st press is 3 grounding, and 2 more on the next, i skip wrath of air, since most fights are over quick anyway, have more use for an extra grounding


PVE:

1: /castsequence reset=15 Totem of Wrath, Grounding Totem, Healing Stream Totem, Stoneclaw Totem
2: /castsequence reset=15 Grounding Totem, Stoneclaw Totem, Healing Stream Totem, Searing Totem
3: /castsequence reset=15 Tremor Totem, Grounding Totem, Healing Stream Totem, Searing Totem
4: /castsequence reset=15 Grounding Totem, Tremor Totem, Healing Stream Totem, Searing Totem
5: /castsequence reset=15 Earthbind Totem, Wrath of Air Totem, Mana Spring Totem, Searing Totem


for pve i use 2 staggered tremor (enough, most pve encounters dont even have fear) 1 earthbind, and 2 stoneclaw (remember i got Shift3 for more earthclaws if needed)
i might add in other totems like poison cleansing and such in later
also added searing totems to the LAST drop.. incase the totem farm is to close.. so it does not agro on the first keypress