Shampoo & conditioner-wise, I just use Pantene (their Ice Shine stuff I think). Never really had the inclination to explore further since with short hair I don't expect it really makes much of a difference anyway.
If your hair's not thick and you're looking for more volume, you might explore other options--and one could be ignoring conditioner altogether.
A lot of the "volume" products contain silicone, which actually weighs the hair down.
I didn't know that, but it makes sense, because I didn't like how the volumising conditioner in the pantene range made my hair feel. The ice shine ones are OK, but unremarkable. Once in a blue moon, I use that VO5 hot oil stuff - I actually really like how it makes my hair feel. But frankly, that's almost too metro even for me to use regularly!
