Elementalist Hero -- Need Skill Recommendations

I'd like some recommendations for slots 6, 7, and 8 on my elementalist hero.

I'm not looking for something that requires skills on another hero. I want a self-contained hero.

What I have so far is Fireball, Liquid Flame, Rodgort's Invocation, Elemental Attunement, Aura of Restoration.

Energy doesn't seem to be too much of a problem, he can usually end a fight with half energy and regen on the way to the next fight.

Spell casting time seems a little slow because of recharges, so I'm curious to know if there's a suitable 4th spell to toss in there for the couple of seconds everything is recharging. Flare seems a bit under powered, primarily because it can miss, and I don't want him flare spamming and ignoring the other skills.

For slot 6 I'm currently using Leech Signet.

For slot 7 I'm currently using Power Drain.

..and for slot 8 I have nothing currently.

I like Leech Signet a lot. I only have Power Drain in there because it's useful, but I'm okay with getting rid of it.

Another requirement is that I need to be able to switch secondary to Ranger to bring Winter. So if we kept Leech Signet and pulled in two more elementalist skills, that'd be just fine.

Do you think Glowing Gaze would be a good fit? Do some filler damage, gain some energy. Would the hero be intelligent about using it only after casting Rodgort's?

Finally, please don't try to re-write the skillbar. It may not be efficient, it may not be the best, but I like it. I'm mostly wanting to get ideas about what may be out there in the dervish/ritualist/paragon world that might fill those final slots. Those are my weakest professions with regards to knowledge.

http://www.gwpvx.com/Build:E/any_EA_Fire_Nuker

Standard secondary crap really. Paragon shouts, smite skills, curses, ritualist channeling skills, ritualist restoration skills, ranger nature spirits, etc etc etc.
Why do you have AoR over Fire attunemen? It's not a better cover enchantment (both have impractical cooldowns for that, and besides, if you're in an area with heavy enchantment removal you shouldn't really take it) and it provides less energy.

The healing is why I took AoR over FA. I'm still in the phase of watching how the build reacts, and as long as he keeps EA going I don't have any energy issues.

This is all normal mode so I'm not in super long fights (and if I am, I'm doing something wrong).

Elemental Attunement is very powerful energy management and using Power Drain + Leech Signet is a waste.

Pick and manage between these skills:

Fire Attunement (you really should use this instead of Aura of Resto; healing is for healers to do)
Aura of Resto (it's worth considering but really inferior to Fire Attunement)
Immolate (for some single-target use)
Glowing Gaze (for some extra energy management that doubles as damage in case of enchantment removal, interrupts, people dying before Liquid Flame finishes, etc)
"Fall Back!" (strong)
Lava Arrows (cheap AoE spam)
Some kind of DoTAoE
Glyph of Elemental Power
Whatever you want from a secondary profession, such as a hard res, more Paragon shouts, Cry of Frustration, etc.