wtb:110vac -> 12vdc 20-40amp power supply

looking for a 110vac -> 12vdc power supply that provides 20-40amperes of current

let me know what you got, something like this

http://cgi.ebay.ca/400W-12V-33A-Switching-Power-Supply-CCTV-DVR-Security_W0QQitemZ200171272074QQihZ010QQcategoryZ20589QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

pm is the key