this is the 16/0/4 spec I (and any other rogue) reccomend for sustained dps along with enough burst to scare people.
Talent Calculator - World of Warcraft
With this build you'd be looking at cheapshot/ambush openers followed by backstabs up to a killer eviscerate. You can switch glyph and talents focused on eviscerate and change them to garrote ones. That is, blood spatter and glyph of garrote. Tbh that would be some killer garrote ticks (total of +70% dmg garrote), and with all the retardins around, bleed damage always comes in handy. I'd actually roll that spec. But most people prefer burst and big numbers, like 700 eviscerates on clothies.
About your gear, it's pretty much perfect, but theres one thing you should change. If you abandon 0/3/17 you won't have as much survivability, so you should pack some more stamina. Your best choice would be to switch your gallan cuffs for a pair of Barbaric Bracers with +9 stamina on them. You would be trading 12 AP for 12 stamina. Easy choice.
Also, get a Scout's Blade already! ench it with +15 agi and when 3.2 goes live, turn xp off and go farm for your Torturing poker with +5 dmg. However, I think +15 agi is better overall. +5 dmg only boosts your MH dmg, while 15 agi boosts both hands dmg, your non-weapon-dependant attacks like eviscerate, garrote, rupture... and your dodge too.
Cheers!