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Yes, yes it is.

For the Crisis Teams, you have run out of space when it comes to those support systems.
Of the two Shas'ui, you have 8 systems, they can only have six, unless the support systems are hardwired, and Shas'ui cannot take hardwired equipment.
I suggest dropping the multi-tracker because if you're firing at tanks, the plasma rifle and especially the burst cannon aren't going to do anything. Im not sure about the target lock either, since your main anti-tank weapon has a range of 12 inches, it will be hard to get into the range of two tanks at once.
I suggest the targeting array, which increases your BS.

Also, I could very well be wrong, but I don't think you can get seeker missiles on the Devilfish while retaining the Gun Drones or Smart Missile Systems.

Okay, rules violations:
- As has been pointed out, you have 8 pieces of equipment for two Shas'ui with only 6 slots to put them. Shas'ui Crisis suits do not have access to wargear, so they can't possibly be hardwired. Eliminate two pieces.
- 3 Sniper Teams cost 240 points, not 160.

Sanity is wrong on the seekers.

Advice:
HQ: Get rid of Iridium Armor. It slows your assault phase move, and it;s better to be completely immune to fire behind terrain than to have a 2+ save and chance getting caught out in front of lascannon battery. Other than that, not too bad. I prefer the Plasma Rifle over the CIB, but that's a personal choice.

Elites: As mentioned, you need to lose some of the upgrades. However, looking at what you have given them, this unit is totally schizophrenic. It has no purpose. It has three different weapon types, only one of which is consistent. I make two suggestions. Either keep it simple, and make the suits Fire Knives; Missile Pods, Plasma Rifles, and Multi-Trackers. On the team leader, he can take a Targeting Array and hardwire the Multi-tracker, giving him a better BS. Or, you can give every suit a Fusion Blaster, Missile Pod, and Targeting Array, for tank-hunting suits that aren't useless beyond 12" and can be on the board from Turn 1, instead of needing to deep strike in to be effective.

Troops:That's a lot of Ld 7 troops with no Ethereal to help them stick around. Simple Morale checks and Target Priority are really going to hurt them without a Shas'ui. Also, I think you negate one of the advantages of carbines by putting them in a 'fish, I.E. their ability to fire on the move. The 'Fish is more useful for getting rifles into rapid fire range. Put Decoy Launchers on the Fish.

Fast: Looks good. Put Decoy Launchers on the Fish and you're golden.

Heavy: Lose Disruption Pods. Put Multi-trackers, Target Locks and Decoy Launchers on the Hammerheads and just remember to move them over 7" every turn.

I personally do not rely on seekers, For the 6 seekers you have here, I could have a Crisis Suit that gets 12 shots over the course of the game instead of just 6, is more accurate, and doesn't need Markerlights. But that's just my playstyle.

I have saved up at least 1000 dollars (pounds dollar differnece), and sence I've paided my part of the bills and I have food stocked up for the next payday.

http://www.forgeworld.co.uk/scalemanta.htm
I'm getting the tau manta, I just want to ask one thing are the hammer heads, battle suits, and troop carriers come along with it, and if they do are able to be deployed (I.e able to move out of the damn thing.)

Thanks man, and those extra tanks are going to be nice when that apoc. codex comes out razz (supa-'eavyz!)

Better save up some more. I think it's currently two and some thousandths of a dollar to one pound. The Manta's going to run you close to $1800.

Has anyone else noticed that Fire Warriors are pretty...well, unimpressive? It's taken me a long time to realize it, but Fire Warriors need to be either in Devilfish with rifles, or minimum size. Either you take a lot of them, or they're a waste of points.