Faith 2, Completeley custom Kona Scrap (1600 worth)
Get the travis. It has larger stantions (34mm) versus 32mm. The have a new dampening system (instrinsic) and are supposed to be really nice. They had a lot of problems last year (manitou), but most of that as with the stance series (very low end). If you can get it for 350, definately do it.
Whoa, the P3 usually comes with a 110mm fork. I do not know if 150mm will chopper it out too much and negativley effect your handling. Also Marzocchi forks have a tallerr crown than others thus adding to the effect.
Also, Specialized is pretty sticky on thier warrantee work and will void your frame if you install a fork longer than what they recommend. They're afraid, rightfully so, that the extra leverage of a longer fork could rip your head tube off. You should check with your LBS to see what the max fork is allow on a P3. I doubt that it will be 150mm