hello, my first post in this forum! I have to buy a mac pro. software used is photoshop, illu, ae, c4d, realflow - professionally. my question is: should I buy a 2.8 octo, 2600 early 2008 with 24 months of apple guarantee for 1900 EUR or a refurbished (12 months guarantee) 2,26 octo, 120 early 2009 for 2600 EUR. both with receipt for taxes. hyperthreading - does it do anything for heavy rendering? my new project is creating and post-pro of macro hi-speed (up to 1200 fps) footage in 3D. is there a difference with nehalem? thank you!!