Ok here is the list I used at a tournament I went to yesterday. I took 3rd place 2 wins and a draw. Beat the Dwarves by 1000 , drew against the Wood elves and beat the Skaven by 1200 points.
I like the way it handles but could always use some suggestions to make it better.

Necrach Count, Dark Acolyte, wrist bands of Black Gold, and Nehekhara's Noble Blood, Rides a winged nightmare.
Necro lvl 2, Book of Arkhan (joins Skeletons)
Necro lvl 2, Staff of Damnation (joins zombies)
Wight Lord, Flayed Hauberk, and Halberd (joins unit of GG)

14 Skeletons, Light armour, shield, Champ, standard
14 Zombie
6 Dire wolves, doom wolf

3 Fell Bats
4 Fell Bats
6 Black Knights Champ, Banner of the Barrows.
24 Grave Guard, champ, Standard

Banshee.

Any advice would be nice, Thanks ahead of time

Imho your GG would benefit more with Banner of Barrows; and it should go where Wight will be. On the other hand; you could mount him; and choose each game with which unit he goes. War Banner is also good; in combination with a BSB Wight lord...

Give the wight lord heavy armour, sword of the kings and enchanted shield.

Necros should have a scroll as well as the book, and the zombies should be a unit of 10 with both necros in it.

Banshee simply isn't worth it now. It's so vulnerable, and with the sheer amount of ItP stuff, it won't do much really.

Doom wolf's also a waste, drop that, and drop the wolves to 5 models. Switch the bats to one unit of 6 to get behind enemy lines and creat crossfires. With the spare up the skellies to 20 models, and up the knights to 10 + warbanner if possible, give the GG banner of the barrows. One thing i'd do is get all of your units musicians. They're immensely useful for autobreaking the enemy if you draw combat.