You mean the latest version of the list in Epic: Raiders?
http://www.epic40k.co.uk/rules/epic/raiders.html
These rules are pretty balanced, as far as I can tell. And, they will remain stable for about a year before changes are made, to let them settle down. There are some battle reports (some are playtests, so are not 'true balanced games') here:
http://www.tacticalwargames.net/forums/index.cgi?act=SF;f=84
As for minis. There are some very hard to find old Chaos Androids which are always the first choice. Alternatively, and perhaps surprisingly, some peopel use Ork Boyz as Necron Warriors. for inspiration, try:
http://www.tacticalwargames.net/forums/index.cgi?act=ST;f=7;t=13749;st=0
http://www.tacticalwargames.net/forums/index.cgi?act=ST;f=7;t=12276;hl=necron
Also, Dark Realm Miniatures Andrayada are the most common proxy models for Epic Necrons.
All the best.