Can some one plz help me, I am leading a new kara group and need help getting people geared, I know what the tanks need and I know what the healers need but not dps. What kind of stats do my dps casters need to have as well as what the melee and the hunters need.
such things like what their + to spl dam or AP needs to be at for a min health and mana pools where it counts and any other stats that matter.
Any sugetions where I can start getting people the gear they need. I have been encuraging reg instances and then heroics if they can do them
I would also like some good raid make ups, i have a good idea of what i need there but suggestions would be great appreciated.
Any other suggestions at all would help Thank you.

Those who can should craft their profession's epic sets.  These usually include 2-5 item level 121-141 pieces - pieces better than they will be able to replace in Kara.

Running the level 70 instances (Shattered Halls, Steamvaults, Botanica, Arcatraz, Mechanar, Black Morass) will also net them loot.  DPSers also have the most to benefit from PvP s3 gear.  Your would-be raiders should be encouraged to at least complete their 5-piece gladiator set. 

Raid make up will be determined on what you can get.  When we have a lot of people that are inexperienced in the group we take three healers (especially if the three healers are part of the inexperienced/undergeared group).  A geared/experienced group can do most fights with one or two. But assuming for new raiders:

MT - prot warr, prot pally

OT - Prot warr, bear druid, prot pally (terrific for the trash AOE pulls)

CC - You need a shackle or a freeze trap - so bring at least one priest or a hunter.  This can be one of your healers so long as their is sufficient other healing to divide her attention as you don't want the shackle to wear off those chargers. Other than that a warlock is great in some parts.  Mages and hunters are useful for some trash as well.  When you are more experienced you will not be nearly as worried about cc, but when you are learning it is crucial.

Dispel - a pally or two is a godsend in Kara for several fights and for their buffs.  If you have a priest and a druid you won't need a pally, but it is very nice.

Healers - shaman, priests, druids, and pallies all do this well.  Most groups run with two healers, but bringing three for safety is good (that way if one goes down or ooms you have two others).  Variety is also good, but if they work together well, two of the same will work.  If you don't have a pally/priest healer you are going to want a pally/priest in the group for the dispel magic, which makes some of the boss fights a lot easier. 

Certain fights are much easier with certain classes along.  Having a priest to shackle for Morose is very nice (a hunter can do it as well, or get one of each to make the fight super easy) - as well as to take the chargers on the way to Attunemen.  Having a warlock on Illhoof makes that fight laughably simple.  You will do much better to have someone who can dispell magic on Prince.  Having a pally (for Blessing of Sacrifice) on Maiden is nice - though if you don't have one, get your best healer to stand in the consecration so that she can heal while the rest of the ranged is repented.  Druid healers are terrific for constantly moving fights like Netherspit. Taking a group with several spell interrups makes Aran an easy and fun fight (four or five interrupts is great, but at least get 2-3 that you can rotate through keeps him from blasting down your raid).  It's great to have a druid or two along for battle rezzs, especially when learning the boss fights. 

Hopefully that was some help. :)  Best of luck - Kara is a blast!

you said nothing about fire mages and how they can best be utilized in Kara