my pvp sorc uses:
Stormshield
.08 Shako (ber'd
.08 Valor (ber'd)
wiz spike
2 occy rings
+3 lightning skills ammy
Silkweave boots
Frostburns
10 + lightning skill grand charms (I think its 10)
10 +5 all res charms (again i think its 10)

She has enough dex to keep her blocking at 75
enough strength for her stuff
The rest is pumped into vit and energy

I maxed out nova, ts, lightning mastery, have a few in warmth, a few in energy shield and a few in cold shield (I think thats the 1...lol)

She works pretty good against most chars...although some of the stuff is a little expensive but if u can buy it then it is awesome