I am appalled by the level of ignorance toward the OP and those of us who are in a terrible frustrating situation currently.
I am a pro graphic / web designer who is getting into cinema and pro photography on my own with the 5dmkII.
I have a full time job as an employee but also do many freelance and non-profit jobs at home with my own business.
I am not one of those people who has to buy the latest and greatest toy, however, in my current situation, I do not want to buy a 400+ day old computer for top dollar (that was top dollar 400+ days ago).
What people forget is that in the past, Apple did quiet updates (ram, processor, HD) so even though the price remained the same, you got a little more for your money.
Not so today. Plus, Nahelam saw a huge increase in price from Intel and was the first time that the 8core MacPro saw less performance gain per dollar gain. The 2008 models where extremely high performance per dollar.
Here is my predicament:
My 2003 G5 has died once again (this is it's second motherboard failure, so it would be going on its third motherboard). Apple recently stopped all repairs for G5's. What people don't realize is that there should of been a recall, almost 40% of original G5 motherboards went bad.
Apple wouldn't even give me $100 off a new purchase (since I work in education). They repeadedly told me I should of upgraded years ago (ok, maybe I like using my hardware for all I can get. I could play back HD video realtime and used CS4 fine).
I have been without a machine for months because I am waiting for either a price drop or the new machines.
Luckily, yes, I make enough from my full time employer, but I am in a jam.
For the first time I have seriously been thinking of jumping ship. I use windows 7 at work, it is ok. The point is, the i7 980x is out and is being overclocked like mad by users. It is stable at 4 Ghz.
Also, why can't Apple make an intermediate Pro model (single chip set), using the i7's instead of the Xeon's and save us money? Most of us do not need dual 6 cores, nor will the performance gain be good with photoshop and Adobe products (other than AE and Premiere).
Again, pro graphic designers aren't able to max cores on Indesign, Dreamweaver, illustrator and Photoshop.
That is my other point: the performance an every-day-Joe-nerd in his mom's basement can get out of an Alienware 6 core naturally overclocked would be the performance of Sandy Bridge or in other words, a mac model released around 2012.
Why? For everyday pro users, the higher Ghz is going to scream way more than numerous cores. Powering through CS stuff @ 4Ghz is fast!
You know what we are going to see, if we do see anything? A 6 core 3.33 Ghz way overpriced (when the i7 @ 3.33 runs 1k and you can build a very nice system for 2k, Apple will have it at 3299, mark my words.)
And for me, looking at the benchmarks for everday pro use (not video or 3d rendering), anything under 3.33 Ghz for the 980x isn't much more speedy than the current Nahalem.
Image being able to overclock your MacPro's? The new Nehalem's were designed to overclock themselves during some processes anyway, just boosting that a little gives extreme performance