Quick Virtuoso Questions

[ZeroTakenaka]

I'm making a Virtuoso bard that's healing/cc spec with some melee thrown in when SP is gone or soloing. (( Melee is not a main part of my build so... >.> ))

A. How much healing does the HP regen song do per tick? (( most likely 4-5 HP per 3 seconds?))

B. Current feats: Toughness (lvl1), Extend(lvl3). I'd like to fit Power Attack in at some point. What should my feat focus be? (( thinking Empower Heal at lvl 6, lvl 9 would be... SF:Enchantment, lvl 12 would be Spell penetration, lvl 15 would be heighten, lvl 18 Power Attack or GSF: Enchantment ))

Edit: Thinking lvl 18 would be better as GSF: Enchantment.