The raised veg beds were themselves raised another garden tie level in the last few weeks. This is a 3″x5″ nominal piece of wood, raising the wall height by 3″.
How much dirt is needed to bring up the levels 3″?

Let’s take Veg3(2007) at 60ft^2 as the first example.
60ft^2/27ft^3 = 2.2 yards of dirt 1′ deep / 4 to get 3″ = 0.6 yards

Veg2(2005) is 80 ft^2 and will need 0.75 yards (but some is already planted)
Veg1(2003) is 170 ft^2 and will need 1.5 yards (and some is already planted)
Veg6(2011) is 60 ft^2 and will need 0.6 yards
Veg7(2011) is 24 ft^2 and will need 0.3 yards
Veg8(2011) is 24 ft^2 and will need 0.3 yards
Veg4ABC(2006) is 200+150+180=530ft^2 and will need 6″ not 3″ gives 9 yards!
Veg4SC(2010) is 120 ft^2 and will need 1 yard
Veg5N(2010) is approx 250 ft^2 and will need 6″ not 3″ gives 4 yards!
This totals about 18 yards already and we haven’t touched on the strawberrries, grape vines, and expanded butterfly garden.

It looks like we will not get 6″ into Veg 4ABC and 5N.
Giving everyone 3″ totals about 12 yards.

Updated 2013 May 06
Veg1 was topped up with 10 wheelbarrel loads of earth (~2.2 yards)
Veg2 was topped up with 5 wheelbarrel loads (~1.1 yards)
Veg3 was topped up with 5 wheelbarrel loads (~1.1 yards)
Veg6 was topped up with 5 wheelbarrel loads (~1.1 yards)
Veg7 was topped up with 2 wheelbarrel loads (~0.4 yards)
Veg8 was topped up with 2 wheelbarrel loads (~0.4 yards)
or about 6.3 yards moved so far

Updated: 2013 May 08
Most wheelbarrels seem to be about 6 ft^3 of volume. It is hard to tell as the one we have is no longer sold by Canadian Tire… and it is a winner. Two inflated large tires in the front, two solid wheels in the back, with a dump lever. Makes moving a lot of dirt not nearly so difficult.