Lumber wizard or Garrett?

[coug]

All-  I am about to start using a stack of reclaimed wood and want to get a metal detector as I know there are staples / screws in the wood.  Mostly old 2X4's and 6's, but also pallets.  I found some older threads here on the FOG and elsewhere on the web.  It seems the Garrett Super Scanner and Lumber Wizard are two of the top ones out there.  Any advice?  I am leaning toward the Garrett.