Funny thing that you should ask. I sat down yesterday to see how much things have changed for us. A few changes such as Imp MotW adding 2% to all stats, as well as the up coming changes to innervate have changed some values slightly, although nothing is ground shattereing
Assumptions:
Blessing of Kings (10% Bonus to All Stats)
Living Spirit (15% Bonus to Spirit)
Improved Tree of Life (15% of All Spirit Converted to Spell Power)
Ember Skyflare Diamond Meta Gem (2% Bonus to Int)
8 Minute Fight (Shorter fights put more weight to Int)
25% of heals cast can crit (Debatable, based on play style. More direct heals will lead to higher crit and slightly higher Int ratings)
80% Uptime on Replenish (A better assumption than 100%, but I wont swear by this as accurate either)
No Time spent outside the 5 Second Rule (Not entirely true, but druids should gear more for this case, then planning to take mana breaks during boss fights)
1300 Int/Spirit (A level that should be able to be achieved raid buffed at the higher ends of gear)
Improved Mark of the Wild (2% to all stats)
Mana Regen Stats:
Int: .5228 (.1788 from Mana Pool, .1724 from Spirit based mp5, .1716 from Replenish)
Spirit: .3891
Mp5: 1
Throughput Stats:
Spell Power: .8
Haste: .12
Crit: .056
Spirit: .1548
Int: .0116
Optional Stats:
Int (Mana Tide): .0429 (.0500 glyphed)
Totals:
Int: .5228 (.5658, Mana Tide – No Glyph)
Spirit: .5439
Mp5: 1
Spell Power: .8
Haste: .12
Crit: .056
Loot Rankings, 1300/1300 5/10/09, assuming you are in a group with a Resto Shaman who can drop the mana tide totem.