If they are ok with
ebay (I am) here's is what to do
Click here:
http://electronics.listings.ebay.com...istingItemList
select the type of amp you want from the "type" drop box...
then make this the search string
-profile -pyramid -pyle -jensen -MA -volfenhag -sony -lightning -vibe -boss -shark -legacy -earthquake -fusion -interfire -visionik -audiobahn -bazooka -ultra -dual -blitz -chrome -fuel
and click search... it searches
ebay but removes most of the worthless junk... yah I'll get flamed for some of the choices but there are great amps for the same money that these amps are selling for.... oh and I probably missed some and those without brands are missed but it helps... I also left out most of the "mainstream" amps like kenwood that aren't neccisarily great choices...
EDIT: also tell them to check feedbacks and to use paypal