I've been brainstorming paint schemes for my upcoming Tau army, though admittedly army expansion is waiting on more trades/me getting a job. Not having an income is...an inconvenience, to sya the least. That aside, here's some of what I pulled from Soulstorm's army painter. It is a bit limited in that it's got a very set pattern, but it does let me get quick and easy shots of a paint scheme.
The Bork'an scheme doesn't look too hard to pull off. Prime, slap the black cloth with some codex gray drybrushing, then do the white armor (drybrushing, maybe a thin black wash?) and then paint light blue squad markings. It looks a bit parade to me, or suggests I do some snow/urban basing.
I have to admit I'm a bit drawn to the D'yanoi scheme. It has a slight concession to parade colors, but the brown and white looks like a badlands scheme to me.
I think the other one out of here that catches me is the Sa'cea scheme. The military blue-gray looks tidy, though I'm not entirely sure what locale it would actually fit into. An ice world, maybe?