welcome to 40konline...
before i start i want to say a quick well done for your post layout. the list is quite clear i think. even if there are some illegalities in there (though nothing major).
HQ
Shas'el 100 pts
Cyclic Ion Blaster
Twin Linked Plasma Rifle
Hard Wired MultiTrack
this is an interesting set up, one i dont think ive seen before. you know, i think i quite like it. at an even 100points it seems effective enough. the twin linking makes the plasma a little better than giving the guy a targeting array, though the ion blaster doesnt benefit from it. still, i think its a fresh approach to a 100point commander.
Elite
Stealth Suit x5 150 pts
a nice team. i always suggest a team leader and bonding knife here...
Crisis Team x3 171 pts
All members of the crisis team have Target Array.
One member has Twin Linked Missile Pods, the second has TL Plasma Rifles, and the last member has TL Fusion Blasters
again, teams of three should have team leaders with bonding knives. here though, i would suggest taking the twin fusion suit and placing him into a team of one, filling that third elites slot. (you could do this with any one of the suits really... each time you do, it will change the way that unit is used because their favoured enemy will vary).
then you have to start thinking about having two suits with twin linked weapons are better off for you than having two suits with plasma, missile pod... (or whichever other combination you have gone for)...
i might also think about dropping the targeting arrays and replacing them with somethign else... your choices are rather limited, but they are there... my favourite these days is to slot in a flamer. you cant shoot both weapons, but having flamers floating about can really be a help against horde armies.
Troop
Fire Warrior x10 110 pts
Photon Grenades
Fire Warrior x10 110 pts
Photon Grenades
personally i would drop the photon grenades... they dont do much to save your bacon, and i dont think you dont have enough combat support to make them worth taking to hold enemy units in time to salvage your team.
Kroot x11 77 pts
yes, the hounds and krootox are now part of this single unit. taking teh krootox loses the infiltrate of the unit... so i generally advise against it. i will get onto the krootox again later.
Fast
Kroot Hounds x2 12 pts
see above
Gun Drones x5 60 pts
excellent. trust me, using them to get at weak tanks is less unorthodox than you might think, and they are VERY good at the things that people dont expect them to be... such as tank hunting, and combat!
Heavy
Hammerhead Gunship 175 pts
Railgun
Smart Missile System
MultiTrack
you should equip this with a target lock to allow your anti infantry SMS to fire when your railgun it targeting tanks. other than that your good here.
Krootox 35
supposed to be with the kroot... however, i would consider dropping it and replacing with somethign else. the kroot gun is not as good as the missile pod... so you might want to think about another twin missile pod suit. you could then run the two missile pod suits as a single unit...
i think you are onto a nice first list, and its a good one to ease you into 40k with tau. you have some mobility, some combat, and lots of shooting so you should be able to learn about the different facets of the game. a nice first army, with lots of room for minor amendments to increase its performance....
i dont want to force you into any specific changes because id rather you find out what works best for you.
oinks overview: 40%a nice 1000point start, although you say your not sure how you will use the list i think you know more than you let on. you have made some specific choices in writing your list, so its good to simply write down why you have chosen specific things. how you could possibly use them in a game (such as what their goals are). this gets you thinking about your choices, and also lets us help you use your units (or suggest better selections for your goals!)