I had originally gone skin/LW on Darq, so for Rather, I went herb/alch - which was VERY overpowered, until blizz changed it to the Battle/Guardian setup
(RD used to have like 10 potion buffs on him at any time, and could solo groups of PvE mob 3-4 level above).
Money? go double gather - skin, herb, mining. Currently, I would say mining (because of JC), and herb (because potions are used by everyone).
Enchanting is, I think, the BEST prof in the game. and when you get to the point where you cad do +4 stats or +2 damage enchant to your rings . . . wow.