Flourescent tubes w/reflectors

Hi, everyone! I've been lurking here for a month or so, and have enjoyed
thoroughly the discussions. I'm going to be setting up a planted tank in
the very near future, and you all have given me much to think about.

My question is: Are the flourescent tubes with built-in or attached
reflectors worth the extra couple bucks? Specifically, Coralife offers
their Trichromatic with or without the reflector. In a hood without a
really good reflector behind the tubes, would these tubes help me to put
more of the light into the tank?

Larry West