When DPSing, you would be using a 2-h weapon. When tanking you would be using a 1-h weapon and shield. So both weapon masteries are important for you to invest TP into. Skills I would level are Probing Attack, Open Flank, Slash, Tactical Attack, and Surprise Attack. Those will be the main skills you would be using when DPSing as a W/K. When tanking as a W/K you will mainly be using Holy Strike because of it's 2.5 x aggro multiplier and maybe throw in a few Probes for other Warriors in group to leech from. However be aware that W/K will not be able to tank the latest end game instance because of it's lack of aggro producing AoE's, Blasting Cyclone is not a reliable AoE to pull with, no aggro multiplier like Whirlwind Shield that a Knight or Will Attack like a Wdn/W. It can tank anything under SC fine but for ToSH-H you will want to do it as K/W instead.
For non-attack skills, Brute Strength is nice, keep it at a decent level, doesn't need to be maxed. Berserk is important when DPSing, Defensive Formation and Survival Instinct important when tanking or they can be good "OH $H!T" buttons. You will want Taunt and Group Taunt to be leveled when tanking. And Aggressiveness increases your rage generation which is always a good thing. When skills are capped at lvl 50 you might as well level them up since it barely requires any TP at all. And all of your W/K elite skills are worth investing TP into.
Firetruck W/Wdn/S 72/72/72- Retired as well now...
Bangsalot K/S/R 70/70/68 - Retired
Heretic- Reni