Indeed 7mp5 on inferno is superior to 6stats.
Your build is short of mana, I usually run with 16mp5 and 1.7k mana so i very rarely have mana issues, however you have only just over 1.6k and barely any mp5. If i were you i would drop some spell power for mana, i like 5mp5 on bracers better than 15sp for instance. If you are intending to hit cap then you are still 5hit rating short, however from a resto perspective its not terribly important (a missed roots can be very aggravating though). When it comes to hit on my druid i tend to go for all or nothing, either full cap or none at all, so either pick up a cloak of the sorcerer or aquarius belt if arena or 5hit to boots for WSG. You will also find 15NR far superior to 5resist.
Im not suggesting that you should go for a cookie cutter druid at all, roll with whatever you find comfortable, and if you find you dont oom terribly often then sure, keep with high spell power, whatever makes you happy.
Edit: What spec were you intending?