http://www.computergamesdb.com/building-a-combat-rogue-know-the-best-talent-build/
As commonly applied in other WoW classes, a rogue talent build also specialized in one of the three talent tree: Subtlety, Combat, or Assassination. This guide will focus on Combat path with some points mixed into other two trees to support the main talent.
Combat
Improved Sinister Strike (2/2): Reduce the Energy Cost for Sinister Strike
Dual Wield Specialization (5/5): Increase the damage from offhand weapon by 50%. With the new Rogue ability to wield axe, you can create an Orc Rogue, equip him with two enchanted axes and enjoy the advantage of his Axe Specialization.
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Precision (5/5): Increase weapon and poison hit chance by 5%.
Close Quarters Combat (5/5): When you use dagger or fist weapons, you’ll critical rate raised by 5%. This will increase your Combat Rogue versatility since he can change weapons to adapt with various battle situations.
Lightning Reflexes (3/3): Increase both Dodge and melee speed. The 10% melee haste will boost your Hack and Slash potential.
Aggression (5/5): Increase the damage of Sinister Strike, Backstab, and Eviscerate by 5%.
Blade Flurry (1/1): Increase attack speed by 20% and attacks strike an additional nearby opponent. Last 15 seconds.
Hack and Slash (5/5): Gives 5% chance to get extra attack on a target after hit it with sword or axe. Previously named ‘Sword Specialization’, this is one of the primary talents in this Rogue talent build. Use the fastest axe you can get to make full use of this talent.
Weapon Expertise (2/2): Increase your expertise by 10.
Blade Twisting (2/2): Add 10% damage to your Backstab and Sinister Strike.
Vitality (3/3): Increase Energy Regeneration by 25%.
Adrenaline Rush (1/1): During 5 seconds period, you’ll get extra Energy Regenartion.
Throwing Specialization (2/2): Increase range of Deadly Throw and gives it 100% chances to interrupt the target for 3 seconds.
Combat Potency (5/5): Gives your successful offhand melee attack 20% to generate 15 Energy.
Surprise Attack (1/1): Makes your opponent can’t dodge your finishing move. Your Sinister Strike, Backstab, Shiv, Hemorrhage and Gouge also got 10% bonus damages.
Savage Combat (2/2): Increase total attack power by 4% and increase damage to poisoned enemies.
Prey on the Weak (5/5): Increase critical strike damage by 20% when your target has less health than you.
Killing Spree (1/1): Step through the shadows from enemy to enemy within 10 yards, attacking an enemy every 0.5 seconds using both weapons until five attacks have been executed; all the damage during this skill is raised by 20%. This talent and Fan of Knives Spell are your AoE skill and can be used to put poison on many targets.
This may looks that it can be take a long time to build, I suggest you check quick leveling in WoW for a few tips to speed up your leveling process. For the rest of the points, I suggest that you spend on these talents:
Assassination
Malice (5/5): Increase critical strike chance by 5%.
Ruthlessness (3/3): Gives finishing moves 60% chance to put a combo point at your target.
Blood Spatter (2/2): Boost both of Rupture and Garrote by 30%.
Subtlety
Relentless Strike (5/5): Your finising moves have 20% chance per combo point to restore 25 Energy.
Using this Rogue talent build, you can easily adapt to various situation by swapping weapons; it also complemented by Throwing Specialization talent that will increase the survivability rate of your Combat Rogue. It is best used by Orc Rogue since he/she can use Axe Specialization, Hack and Slash, and Lightning Reflexes, which is a powerful combination.
There are many other ways to build a great rogue, I highly recommend that you check Zygor Guide Review and see how it can greatly help you in selecting the best talents to take and fast leveling.