2002 honda 400ex drive chain ??

hello
i am looking for some info on getting a new drive chain
i all ready bought brand new front and rear sprockets just need the chain now

i asked at my local ATV and dirt bike dealer they said a new DID 520 ERT2 GOLD motocross chain is around $120.00 plus tax
it seems to be a pretty high price i should hope its real gold on the chain

so what kind of chain and a price are yous running on there atv"s
thanks