Dominators don't shine until you have permadom, so make +recharge your #1 priority. Not sure I agree with not taking the melee attacks, they are by far your hardest hitting attacks. And since so many of the powers in Dark and Soul are PbAoE and you have to be in melee range anyway.
IMO Mass Hypnosis is a waste and easily skippable. Telekinesis is a bit of an oddball power that takes a lot of practice to use well and not piss off the team (think Hurricane). But once you get the hang of it it's amazing.
As a Dom you can skip the single target Confuse and Mesmerize (tho the latter is fine to take for the flavor of being a mind-controlling vampire).
Terrify is a another iffy power for a Dom. You have other powers that deal damage and fear is of questionable value if you have a ton of AoE attacks.
Even if you wouldn't normally slot Life Drain for healing on other ATs, do it here, as it's the only damage recovery power in your kit.
Just my 2 INF.