Any Must-have?

Like the title suggest, any must-have items or sets for a Geo? I'm thinking of picking it up for LS needs and I don't wanna half-*** it so doing so preparation work beforehand :p Started looking up threads and gearsets but wanna make sure I didn't miss anything!

Bubble Boy only: WKR Bell or Dunna, Geomancy skill+, -DT, and Conserve MP sets.

Be more useful in a variety of situations: Precast Fast Cast, MAcc, MAB, Cure Potency, TPing, Flash Nova, Realmrazer, Pet -DT sets.

Single piece of gear I can't stress enough to get is Dunna or the WKR bell. Seen my far share of PUG Geo's who come along to 2x Geo a run that lack it. Incredibly frustrating that someone can't be bothered to spend 5k at the AH to get half the potency of an Idris. Ignorance happens, but I've seen it try and be defended. XD

If you're serious geo, you should also make a conserve MP set. Comes in handy on those long incursion fights.

and drain/aspir set too is realy handy, or a good pdt/mdt set nuking cure, enfeeb, stun even impact. tbh geo does need allot of gear to be good and its worth it. even a melee acc set is usefull.

Or even better this question could be directed to the random questions thread or this one
http://www.ffxiah.com/forum/topic/41358/bubble-trouble-a-geomancer-guide/