Dave, My favorite anatomy book of ALL time is Burne Hogarth's 'Dynamic Anatomy'... Linkage

Other than that book, and another one by Burne. I find most of my reference online. Whether it's bodybuilders or MMA fighter, there's tons of reference out there.

Bullet, cheers, yeah it was just a one-off bit of overtime... couldn't turn it down.

Murambi, Yeah at the moment I use a Wacom Graphire4 that my parents got me for my 18th birthday... that was few years ago though... I'm actually looking to get a new Wacom intuos4 now (courtesy of above-mentioned overtime )

Cheers.