I'm planning on buying a new MacIntel desktop when they arrive b/c my Old Faithful 1.25 GHz PPC7455 really can't cut the mustard any longer... either the mid or high-end machine. So I love speculating about this

I have heard some of the rumors, but here's what I am wondering... Currently we have these models (with CPU/FSB):
$3300 PPC 970MP @ 2.50x2 GHz/1250x2 MHz
$2500 PPC 970MP @ 2.33 GHz/1150 MHz
$2000 PPC 970MP @ 2.00 GHz/1000 MHz
and at one point we even had the 2.7 GHz/1350 MHz cpu/bus combination. Now my understanding of what we will have available as of early August (CPU clock, FSB, L2 cache):
Xeon 5160 3.00 GHz/1333 MHz/4 MB
Xeon 5150 2.66 GHz/1333 MHz/4 MB
Xeon 5140 2.33 GHz/1333 MHz/4 MB
Xeon 5130 2.00 GHz/1333 MHz/4 MB*
Xeon 5120 1.86 GHz/1066 MHz/4 MB
Xeon 5110 1.60 GHz/1066 MHz/4 MB
Core2E X6800 2.93 GHz/1066 MHz/4 MB
Core2D E6700 2.66 GHz/1066 MHz/4 MB
Core2D E6600 2.40 GHz/1066 MHz/4 MB
Core2D E6400 2.13 GHz/1066 MHz/2 MB
Core2D E6300 1.86 GHz/1066 MHz/2 MB
Core2D E4200 1.60 GHz/800 MHz/2 MB
(* This and below don't support Intel's Enhanced SpeedStep (demand-based switching).)
Assuming that 2 rumors are true:
1) That Woodcrest is bascally the same cores as Conroe, but with the ability to operate in an MP environment (i.e., you will never see a Conroe quad), and
2) that Apple is somehow managing to wedge 2 Xeons into the high-end Quad tower
...then along with the above Core 2 Duo/Extreme expectations, wouldn't it only be common sense to have an all Xeon Mac Pro lineup, with the dual 5160 (quad core) leading the pack at 3 GHz? At the WORST I would imagine the lowest-end machine has the 1066 MHz bus...?? I mean, I can certainly understand a lineup like:
$3300 Xeon 5160 @ 3.00x2 GHz/1333x2 MHz
$2500 Xeon 5150 @ 2.66 GHz/1333 MHz
$2000 Xeon 5140 @ 2.33 GHz/1333 MHz
But if Apple opts not to use that 3 Ghz 5160, then what can we expect to get?? I shudder to think they will do something like:
Xeon 5150 2.66x2 GHz/1333 MHz
Core2D E6600 2.40 GHz/1066 MHz
Core2D E6400 2.13 GHz/1066 MHz
How *lame* of an advance would that be from the current models? Apple would essentially be saying "Congratulations, that mid-range machine you were buying went All The Way from 2.33 to 2.4 GHz!! But, we had to cut your bus from 1150 to 1066 MHz. Sucks to be you." It may not be so tragic for the low-end machine, but still... a crappy,
crappy step fwd if Apple does not use all Xeons, I think... Unless Apple has cooked up some scheme to do increased FSB speeds? Maybe it's just that I'm hoping for an all 64-bit -> all 64-bit move on Apple's part (the Xeons are 64-bit and the Conroes 32, aren't they??). Or that I'm praying for a mid-range Xeon 5150 running at 2.66 GHz because then the 3.0 Quad really would be overkill for me. But if they top out at a ~2.7 GHz quad, I'll probably end up forking over an extra $800 for it to get what I need...