Lol dude, how handy do you have to be to make THAT?
Get four 2x4's of desired height and a few more lengths of 2x4 depending on the length of the cabinets, and screw them together. The lay and screw sheets of plywood on the crossing 2x4's so they look like this
|0 0 0 0 0 0|
|-------------| 0= rubbermades
|0 0 0 0 0 0 |
|-------------|
| |
If you want I could make a better drawing with adobe illustrator.
EDIT: The last row of "|"s should be lined up, for some reason it isnt and i cant change it.