Hey all, I will be purchasing a new mac pro to do video editing for weddings, industrial videos, ect. I'm wondering how much memory do i need. I've heard 4 Gbs is pretty standard, is this right? Or do i need more? Also, i'll eventually be utilizing motion graphics and so forth, will the standard card do the job, or should i upgrade that. Any help would be appreciated. This will be my first apple computer purchase and am trying to find out as much info as possible. Thanks.