to shoot something like guitars...u need at least 3 light heads dat comes with 2 softbox's and u need to buy a roll of tracing paper...the light heads would probably come with their respective standard head reflectors...depending on where u are...as for background...are u edging out the guitars or issit taken in one shot?if it is one shot you could go order a 8 x 20 ft patchy background cloth..and if you are edging out a grey or white background would do just nice...