A list I came up with for my fledgling tau army. Now some people probably aren't going to like this but at least it's not riptide spam...
Basically the Farsight bomb does its thing (plasmas, the Hit and Run), the commander gives the marker drones bs5

and the riptide is basically a fire magnet - it'll probably only last a turn or two.
let me know what you think - i'm happy to drop the hammerhead to free up points if need be and i'm not great with choosing support systems (yet), but anyway...
HQ
farsight (165)
commander - target lock and drone controller (98)
7 crisis bodyguard - 1x retro thrusters, 7x
TL plasmas, neuroweb syste jammer and 14 shield drones (539)
TROOPS
3x 6 fire warriors (162)
ELITES
riptide - ion accelerator
FAST ATTACK
12 marker drones (168)
HEAVY SUPPORT
broadside - velocity tracker (85)
2 broadsides - velocity trackers and 1x seeker missile (178)
hammerhead - longstrike (170)