Neck:
http://www.wowhead.com/?item=34177
+30haste

Sholder:
http://www.wowhead.com/?item=32579
+37haste

Back:
http://www.wowhead.com/?item=34241
+32haste

Chest:
http://www.wowhead.com/?item=34373
+44haste

Wrist:
http://www.wowhead.com/?item=32574
+27haste

Weapon:
2x http://www.wowhead.com/?item=34214
+70haste

Bow:
http://www.wowhead.com/?item=2824
1.6 attack speed

Hands:
http://www.wowhead.com/?item=34374
+34haste
Enchant: http://www.wowhead.com/?spell=13948

Waist:
http://www.wowhead.com/?item=30919
+36haste

Legs:
http://www.wowhead.com/?item=33538
+30haste

Feet:
No haste feet
+0

Finger:
1. http://www.wowhead.com/?item=32526
2. http://www.wowhead.com/?item=34361
+59haste

Trinket1:
http://www.wowhead.com/?item=28288
on activate+260haste

Trinket2:
http://www.wowhead.com/?item=28830
change on hit +325haste

btw i dont have all these items... just this would be the best combination. So unbuffed you sould have bout 430 haste.

2.Talent:
In Beast Mastery yoo should put: 5x http://www.wowhead.com/?spell=19556 and down to 5x http://www.wowhead.com/?spell=34470. Than in Marksmanship fil to 2x http://www.wowhead.com/?spell=34949 (needed cuz you get 2min cooldown lees on http://www.wowhead.com/?spell=3045.

3.Stuffs what give more attack speed:
http://www.wowhead.com/?item=34106 what gives you +15% ranged attack speed.
http://www.wowhead.com/?item=29529 +80haste..
and if you are in shaman group ask for http://www.wowhead.com/?spell=2825
and if you are troll hunter http://www.wowhead.com/?spell=26635

4.And if you get all these buffs, gear you should get:

5.Also some guy who get 0.04 speed: http://www.youtube.com/watch?v=why7oubv7tg