Thinking about buying these (link) to try to do this (link) HELP

[dajavudesigns]

Filters for
36"x 36"
Softboxes
(2525)

(6) Color Effect Softbox Filters 36"x 36"
$99.95 + $10 shipping =$109.95

http://www.jtl-lighting.com/filters-gels.html

I already own a couple 36 by 36 softboxes from this company.



I'm trying to do some lighting like the blue and red colored lighting throughout the video on the artist.
18+ only

http://www.youtube.com/watch?v=WF_-DST-6oA
fast forward to 50 seconds for the blue effect
fast forward to 1:07 for the red effect

 

[dajavudesigns]

or would i be better buying a couple of barn doors and some filters/gels for them? http://www.jtl-lighting.com/accessories.html