I have 3 bars up. My hotkeys are tied to my number pad as well, find it easier that way. 0 is root, 1 & 2 DOTs 3 is second root 4 & 5 is nukes and 6 is painful meditation. 7 & 8 are stuns and 9 is HO with / and * being my 2 creature nukes

find this works nicely as I work up the keypad in order from 0->6 using the other five buttons if needed.
My second bar is old spells if I need them and the 3rd is buffs, debuffs, Call of OL, my pet etc...
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Camulos Knightrider: Dark Elf of Freeport City, Officer of Dark Warriors of Valor, Defenders of the Dismal Rage
Wizard of the 24th Order
Provisioner of the 24th Order