While you can go:
http://realmplayers.com/Talents.aspx#f0gcoLZMIVb0Ez0roV
You start the fight with: garrote > Slice and Dice > Back stab > rupture
Your rotation will be: Spamming back stab as a filler, while keeping slice and dice and rupture up, "all the time"
you can vanish and reapply garrote for reducing aggro and applying more dps by garrote based on vanish CD.
Your Burst would be: A Rush+BF+SnD+ Dps Trinket(if you have one)...You can name that macro "Boom"
Avoid SS and Evis as much as possible unless you want to save the energy from going to waste in occasional situations like bad positioning trash mobs.
If there is a shaman in group WF, If there is no shaman, Keep Deadly poison on Main Hand dagger and Instant poison on offhand
thistle tea, pots and scrolls if you are rich.... Enchant your gear and weapons with MAXIMUM Agility possible.
your constructive feed backs are welcomed.