Can't believe I missed those two!
Here's an updated build, then: http://skyrimcalculator.com/#60480
Also, would dual casting increase stamina gained as well? If so, there's another perk I might want to drop a point into.
Dual casting is HORRIBLE for healing spells, it increases the magicka cost 2.8 times for 2.2 times the effectiveness. You are better off just casting the spell twice for less magicka.
I see that you have enchanting and the necromage perk. With only 4 points in conjuration, (novice conjuration, necromancy, dark souls, and twin souls) you can get two permanent dead thralls. If you don't have a lot of magicka, you can make a set of clothes with reduced cost conjuration that you can carry with you that weigh as little as 4 pounds to raise your thralls. Since you have necromage, it allows you to thrall Volkihar vampires, which are the highest level thralls you can get, its also pretty nice to have your own little vampire group. >:3
I love playing as a vampire and all the downsides to fighting during the day can be completely offset if you know what you are doing. If you bring a follower with you, you can feed whenever you are near a bed by ordering your follower to sleep.