There are 2 Apple stores near where I live and the first one are out of the 2.8GHz 8 core and the 2nd Apple store has actually more than a few available.
So I called and made an appointment for a business purchase (use my permit) and the easy part is getting it for the business purchase price where even the employee told me nothings really necessary and just declare it as buying for a business but if you want tax exempt you would have to have some tax exempt permit.
Anyway I was well prepared with all that stuff and went down to the Apple store. I met with the guy talked to him about the mac pro where I pretended I didnt know what 3.0ghz or 2.8ghz was and just nodded to whatever he was trying to explain to me, just not trying to be rude.
Anyway after all that, just before I was about to fill in the paperwork I decided not to go through with it. I figured that even with paying $1899 (which is an amazing crazy deal) the first thing I would do is buy 16GB of RAM from transintl.com for $550. Then I would HAVE to buy an ATI 4870 since I already own a 24" LED ACD for the mini displayport (cost $349.99) and it will all end up being around $2980 close to $3000 after tax.
I know the 2.26GHz is $3299 but with student adc discount I could get it for $2639 + tax would be around $2856, so basically its just total of $216 difference and I can use my 24" LED ACD with it out of the box + I can buy 12GB of RAM for $200 from transintl.com (knowing from barefeats.com that 12 (6x2GB) had the fastest results).
Anyway the difference overall wasnt too big for me to buy the last gen, especially if I bto from the apple store online I can add the ati 4870 card for $160.
Also I still havnt seen a full benchmark differences from the new nehalem models as to the older ones. I figured that 40% less latency, 2x faster memory speeds, quick path interconnect would be worth the extra few hundred dollars