I thought I would share my Necrons list as it isn't posted on the blog anywhere.
Necrons 'Mechrons' - 2,000 points
HQ
Necron Overlord w/ Catacomb Command Barge - warscythe & mindshackle scarabs
Royal Court - 3 x Crypteks w/ harbinger of destruction & solar pulse
Necron Overlord w/ Catacomb Command Barge - warscythe & mindshackle scarabs
Royal Court - 3 x Crypteks w/ harbinger of destruction & solar pulse
Troops
5 x Necron Warriors w/ Ghost Ark
5 x Necron Warriors w/ Ghost Ark
5 x Necron Warriors w/ Ghost Ark
5 x Necron Warriors
Fast Attack
6 x Canoptek Wraiths - 3 x whip coils
6 x Canoptek Wraiths - 3 x whip coils
Heavy Support
Annihilation Barge
Annihilation Barge
Annihilation Barge
Total: 1,995
This list works in a simple manner; Wraiths zoom up and run on the first turn, Ghost Arks and ABs follow behind with the CCBs zooming up on each flank. Lances will start blasting vehicles with gauss support and the ABs can fire into any occupants who come out or crack open more armour. The ABs are particularly good at dealing with fliers too.
The following turn Wraiths rock up and will go for something based up on target priority. They may get support from gauss, depends. Against vehicles they will block the exits to stop units coming up and to force emergency disembarkation.
I've had this list since before 6th ed and it has done fine in both 5th ed and 6th, it is actually better in 6th ed thanks the many changes which work in Necrons favour i.e hull points and 6+ to hit fliers.