Ok, if you're going for summons I advise getting some 'summon resist' (prerequisite skills are 'clay golem' and 'golem mastery') because this will (especially at the first few points) greatly increase their overall resistance.
Another usefull part about this is you get the clay golem (don't need a corpse) which will be of great value in the lower levels.
Before setting out to max 'revive' I urge you to experiment with it: If you can't keep more then 6 revived to follow you and stay alive then you won't have use for a higher level in revive (revived can get 'lost' when stuck behind walls while you move on).
To increase your army, points in 'raise skeleton' and 'skeletal mage' can help, but if you don't take them to a high level then they will be to weak to keep up.
Also, plenty of points in 'skeleton mastery' will make your skeletons and revived stronger and healthier.
Understand that summons take increased levels of damage against bosses, so make sure that you can keep raising them.
About the curses, I wouldn't go for 'confuse' or 'dim vision', they have nice enough effects but will not affect bosses so with that in mind it would seem a bit of a waste in skillpoints.
When you bet heavy on skeletal mage/firegolem and/or elemental- based revived then a point in 'lower resist' is very usefull.
'Iron maiden' will not be usefull against enemy ranged/spellcasters, but will work great against melee opponents, this will also increase damage reveived for bosses when they bash your minions and hurt themselves in the process.
On a sidenote: Putting lot's of points in 'Iron golem' will also increase your chance against bosses, because it has it's own version of iron maiden that will combine with the curse.
Decripify is very good, enemy movementspeed/physical resistance and damage reduced, it's only drawback is a short duration.
Lifetap also works nice since it makes your minions last longer.
Don't put a point in all usefull curses, you can't use them at the same time

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One last thing, if you do decide to go for lot's of skeletal mages then a strong boneprison works great, it keeps the opponents inside while your mages attack from a distance.
Well, lot's of new choises to consider I guess.
Don't worry to much about getting started, you'll start the game with a wand that adds one point in raise skeleton.
For your choise of merc, I strongly recommend using an act II merc, they provide an aura that will do one of the following things for your minions depending on what difficulty you hire them from:
Normal difficulty: Defensive- Defiance aura will raise armor.
Offensive- Blessed aim aura will increase melee/missile accuracy.
Combat- Prayer aura will cause hp-regeneration (not so effective in high levels).
Nightmare diff.: Def- Holy Freeze aura, you already chose not to use it (seems like a wise choise to me

)
Off- Might aura will increase melee damage.
Com- Thorns aura will do the same as iron maiden.
Hell diff.: Def- Defiance aura
Off- Blessed aim
Com- Prayer aura