NovusBogus wrote:Damn you are well stocked, I'd be lying if I said I wasn't a little jealous. Assuming you have to make it from scratch, Zbrush/Mudbox is going to be your best bet because it's intended for sculpting. There may be some tools out there to turn photos into a rough model to get you started. Be warned, human sculpting is *not* easy and expect to have to sink a lot of time and possibly money into learning how to do it right. These are pro-level tools so badass models are mostly coming from people who've done this 8 hours a day for many years.
Your other option, which is much more novice-friendly, is Poser or DAZ Studio. These are both designed specifically for human-figure rendering and work with premade figures with morph dials to change the figure's appearance, i.e. give him wrinkles or make him fat/skinny/etc. DS is a free download and it may include enough figures and morphs to do what you want to do so I'd start there.
Incidentally, if your goal is to print this be aware that that introduces a lot of complexities depending on the size, level of detail, and technology you intend to use.