No idea how much they are worth, but feel free to offer. Below are just my set prices and depending on offers i'll see which is the best offer i have these domains posted in many places

hypeservers.com - $35 obo
hypeservers.net - $35 obo
empirevoice.com - $25 obo
empirevoice.net - $25 obo

or $100 for all 4

all 4 expires 1/16/2012 and are registered at namecheap

payments made through paypal