Ok found one,I'll update my post as I find more:
Thanks merv77
http://www.ebay.com/itm/AC-100V-240V-Converter-Adapter-DC-5V-8A-40W-Power-Supply-Charger-DC-5-5mm-New-/350794968653?pt=US_Server_Power_Supplies&hash=item51ad026e4d
Thanks MonocleMan
http://www.ebay.com/itm/5V-5A-AC-DC-Power-Supply-Replacement-Adapter-with-2-1mm-x-5-5mm-Tip-Center-/220961860354?pt=LH_DefaultDomain_0&hash=item33725a6b02
Don't buy that 5V-8A-40W power supply above because I did and it's only good for 4 erupters 2Amps and this is because it's not a regulated power supply.
I'm not sure, but the other 5V-5A below it probably isn't regulated either.
For those wondering what's the difference between a regulated and a non-regulated...
with a non-regulated the more amps you draw the greater voltage drop.
with a regulated power supply there's minimal or no voltage drop, which is important with the erupters.