I'm running 3043 haste currently (without spell haste buff, thats 5320), without i would recommend going for 3028. you lose a tick of rejuv, lifebloom, and tranq, but you get the wild growth one. we currently just don't have the gear for running that much haste IMO.
as Taoon mentioned, the graphed 3028 would be your marker, but go with 3043, its only a few more points, and when you do have the 5% you will already be there.
Also, tell your raid lead to get off his ass and get your team the proper raid buffs.