Here's a basic kit, all available from B&H in NYC:

one x Lowel Pro-Light - $120
one x barndoor set for Pro-Light = $35
one x Lowel V-Light - $130
two x Bogen/Manfrotto 3373 light stands @ $57 each = $114
two x Photoflex 30 inch reversible umbrellas @ $21 each = $42
one x Tundra padded tripod case (27 inch) = $40

Total = $481 leaving you some left over to pay for shipping.

That's a good start Matt.
I would invest in at least one 24" x 32" soft light box for the Tota, like 
the Chimera or Photo Flex brands. (about $235.00)
Of course, you will need a "speed ring" to hold the box to the fixture. Even 
though it's pricey, ($135.00 retail) the Chimera brand speed ring is the 
best. Then, you will need a grip head to hold the speed ring to the light 
stand. But that's only 25 bucks.

So you wanna light a warehouse?
Not easily done with three lights.

Depends on what kind of lights are used in the warehouse in the first place.
If they are fluorescent, tungsten or possibly even mercury vapor, you can 
use them as the overall source and just light a key area with your three 
lights. For fluorescent and mercury vapor, you can add "half" blue gel to 
the DP or Tota to balance the color temp somewhat.
If the overall light source is sodium vapor (orange looking) you are pretty 
much out of luck color balancing.
Sodium vapor lights are monochrome wavelength. They occupy a very narrow 
band in the light spectrum. White balancing to this kind of light can be 
done, but the results are not going to be very close to what you would hope 
for.
However, Bill Davis brought me on one of his shoots somewhere's in the south 
a few years ago and I was quite surprised we got an OK white balance in a 
warehouse under sodium vapors with his DVCAM.