Hello, i want to change the gems in my chest, belt and boots to haste gems and buy the haste trinket, guardian's necklace and place haste gems in those as well. Through that i will have 156 haste in the end. However i'm a little worried that i will lose too much mp5 and without downranking in the upcoming patch (3.0), i think i will lose my mana fast because of the high haste rating and low mp5.

-Haste neck: http://www.wowhead.com/?item=37929
-Haste trinket: http://www.wowhead.com/?item=35326

-Armory link: http://eu.wowarmory.com/character-sheet.xml?r=Balnazzar&n=Flameshock

Thanks