I ordered the Quad 2.66 with 6GB and the 4870.
Basically I am a gamer who also enjoys photography and got a new HD Camcorder (Sony SR10) at christmas.
So my main usage will be lots of TF2 and Empire Total War in Windows, plus lots of Lightroom 2 and Video Editing in OSX.
My current Core 2 Duo (E6600) was painful to encode with in Windows - it would take 2.5 hours to encode 10-15 minutes worth of footage to to 720p. I installed OSX on the same hardware (lots of things not working of course as badly planned hackintosh) but the same footage, using the same (yet unsupported/hacked-to-work) hardware and software would take half the time! So then I was desperate to get a good mac pro.
I was this || close to buying the 2,8 octo a month ago but the 8800 was not going to cut it for me in gaming, so I am glad I waited in that respect, but I am paying about £300 more now for a machine that's only a quad

with the upside being I have a very capable graphics card with the new model. I could afford the octo if I sold a load of stuff, but having seen the new baseline octo's benchmarks I don't think its worth the sacrifices I would have to make, and I certainly cant afford something like the 2.93 octo. Seeing as 50% of my usage is gaming, the 2.6 quad is probably the best bang for my meagre bucks, though it will hurt to know my video encoding could be much faster, especially once snow leapord arrives.
Still its my first real mac, I have run hackintosh on both my home PC and a dell latitude for some time so looking forward to not needing to constantly hack kexts and stuff to get things working all the time
Shocked to see my delivery date is 1st April (I ordered 2 days ago) but hoping it comes early as some other posters seem to be getting theirs when they weren't expecting them for another 3-6 days
