Can someone recommend me a driver?

I am trying to build a laser pointer. Can someone recommend me a driver?
(I read through the forums and saw a few drivers, like x-drive, e-drive and ghost drive, but don't know which one to get, also, can you include where to get them from?)

Here's what I am planning to use:

M140 445nm 2W diode (to run on 1.7A)
2 18650 Sony / Panasonic batteries (7.2 to 7.4V total)

An advanced thanks.

all depends on what host you're using and how big the pill is, click on the orange link in my sig for parts

Thanks a lot. Your post and the links actually helped me. I PMed a few of them already.

glad i could help :beer: