I also recommend WD for external harddrives (or internal for that matter, WD are a good brand in general). I have a 320GB WD MyBook and it's served me really well.
The only bad part about the externals is that they have a warranty of 2 years or less (depending on the model)
Head and Shoulders works wonders. I've been using it since the beginning of the year and my hair feels great
Same here. I dye my hair quite a bit and that shit works wonders.I use this Panteen Pro V special formula shit. I gotta take care of my hair.
I found a good solution for knots. In the shower, after I apply the conditioner to my hair, I comb it before rinsing.