Hi, So yeah I have an Early 2008 mac pro with 2x3 dual Core Intel Xeon with 5gb 667MHz DDR2 FB-DIMM ram and an ATI RADEON X1900 XT 512 MB video card. I want to get a higher model, Preferably one with dual video card compatability. What do you prefer/suggest? I'd like to know. Also a lot of my friends told me that not all video cards work with the intel mac??? Is this true? wtf? Thanks in advance.