One simple conversion I have seen is the "walking" Warrior. Simply put the legs are cut, re-positioned, and then re-attached to the model so that it appears as if walking opposed to the stupid wide standing still stance normally seen. In addition to the legs the arms can also be cut and reposed even if it is to a lesser extent. I have gone and made it so the Warriors aren't holding the guns flat on their chests. Some of them will be holding them pointing strait out with a new hand placed on the models other arm. Others will be left handed as can be seen in one of the pictures I included. Regardless the hope is to make them less static.
The second model that is almost always included in a Necron army is a Lord. Since the Necron Warrior Phalanx came with a Lord with Resurrection Orb that will be the first to be built. It does help that a Necron Lord with Resurrection Orb and two Squads of Necron Warriors is 500 points exactly and that is a good point level to start with.
Hopefully I can get all 20 warriors done soon and decide on a painting scheme so I can start the first bit of painting. I did order some blue 3/32" rods to replace the green ones that come with the models as well as some slightly larger ones, 1/8, to cut up and use as the crystals as the bases usually have. With that order I got some weathering powders, plasticard, and a few other things to help with the modeling. Finally, I did a little trading and now have 5 more Destroyers and my 3rd Monolith on their way to my house.
This new army seems to be shaping up quite nicely.