i have a small headshot job for friends coming up and i own no lighting equipment whatsoever. i'm wondering if i could get away with making my own softpanel and using like a 500 W worklight. i would probably be able to reflect that with white foamboard.. would that give enough contrast? any suggestions? i can't run out and buy softboxes, but i also don't want to look like a crazy homeless person setting up a shanty when i get there. i probably can afford a speedlight but would rather wait til i upgrade my camera. i have a nikon D40x, probably use sigma 30 lens but could use a D300/ 50 1.8.