So this is the basic concept I'm going with for my 1850 Tau list that is fast-moving-sneaky themed... I was going to go with a Cadre Fireblade (or maybe even Darkstrider) instead of an Ethereal for my HQ... but Ethereals are cheaper both in terms of points and money, and have a really cool area of effect ability to buff my nearby Firewarriors, thought they do yield and extra VP when killed...
That said, here's the list... and 12 out of 18 of the Stealth Suits are old metal XV-15's... because they're awesome.