Can you afford $50 maximum in supplies? Based on what you're shooting I think the following will be more than adequate...
Shopping list:
2ea. 48" dual tube fluorescent strip lights (plugged variety)
4ea. 48" T-12 25W "
Kitchen and Bath" fluorescent tubes.
1ea. King size bed sheet *white*
Chain, wire or twine and some hooks to hang the lights from the ceiling.
Thumb tacks (or duct tape!) to secure the sheet to the wall.
- Now then, move that table out of the way and use the blind to cover the window - we only want ONE temperature of light striking the subject.
- Next, attach the sheet to the wall with the top edge at about 3 feet up letting it drape down and flow out onto the floor similar to the blind in your photo but we want more sheet on the floor than we do on the wall (I'll explain in a minute).
- Hang the fixtures from the ceiling so they are no higher than about 4 feet off the ground - we want big bright light for soft (if any) shadows. Hang one about 1 foot from the backdrop/wall, the other 4 to 5 feet in. (You may want to do some test shots before "mounting" the 2nd light)
- Place one of the computers on the sheet with its backside at least 18 inches from the backdrop.
- Get low and squeeze off a shot.
If you've set everything up right and the white balance is good, you should end up with a nearly shadow-free photo with really good details and no glare coming off the monitor.
It's not a perfect setup, but it should work really well for the type of product you're shooting. The 48" fluorescents will put out a ton of light and are physically big enough that any shadows created will be very soft.
Worst case - it doesn't work and you've got a new sheet and some great shop lights.