Not really a price crash, I paid less than that in the UK four months ago.

My friend just bought a new 5d body somewhere for $1750  - great camera, as long as you don't mind the dust problem

You will get dust problems whatever camera you have.

I've not had either my 350D cleaned (which I've had for two years) or noticed dust on my 5D, and I change lenses fairly often.  In fact half the time I leave a lens off while I wander around the house trying to find my other lens...  doesn't seem to have caused me a problem yet.

We all know the web is getting full of successor guesses (5DmkII, 6D, 7D, 3D...), but this is the "last" (definitely not least) specs speculation out there:

15.3 MP full frame CMOS sensor (vastly improved light-gathering capacity per pixel: improved micro lenses; miniaturized micro circuitry; enhanced signal/noise ratio)
Weather sealing same as 1Ds Mark III
Dual Digic III with all-new "CXR" NR system reported to best 3rd party NR software. Available as a C.F with 4 levels of customizable parameters.
14 bit A/D conversion
ISO 12800 (C.F. up to 25600)
Reported 1 2/3 stop sensitivity improvement
All-new 29-point TTL CMOS sensor with 12 13 cross-type for F/2.8 or faster lens (35% faster than 40D)
Micro lens fine adjustment for up to 14 lenses
300,000 exposure shutter durability
6.0 / 3.0 fps
3.0" LCD 922,000 pixels
EOS Integrated Cleaning System
Live View (improved from 450D; latest generation)
6/3 fps continuous shooting for up to 68 frames
MSRP $3499, available June 2

The only thing certain is, imho, the price. Canon isn't going to devalue neither the prosumer 40D nor their 1D/Ds tops.

p.s.: That's why the 5D looks like an awesome choice for that price.

I am waiting too ;-) Release specualtion on DPR range from April 22 to Oct 08.

I believe the two points below will not be seen, cos they would cut into 1 series sales ... but who knows.

Weather sealing same as 1Ds Mark III
Dual Digic III with all-new "CXR" NR system reported to best 3rd party NR

I am interested in a wider auto-bracketing range for HDR work.
5D has only 4EV, whereas 1D has 18EV maximum  range with autobracketing.
The new Nikons are better than 5D in that respect, with 8EV.

But if the successor to 5D brings an improvement there, plus weather sealing plus dust cleaning, I think I am going to start saving for that camera.

My friend just bought a new 5d body somewhere for $1750  - great camera, as long as you don't mind the dust problem

I hope your friend can get a warranty repair done in the future, because that price is about $300 under dealers cost for the camera. I'd worry about owning a hot camera?

The price for the 5D camera with lens actually went up this month at B&H, which I found to be strange. I made a note that April 20th, I predict it will go down again, because that's when the $200 rebate ends. 

As far as the rumored dust problem, it seems to be like the Full Moon effect. If you tell people that it exists, soon they will find that it's true. (even if it isn't)

From most reports the self cleaning sensor is made of the same green cheese and doesn't really work that well, but the perception is that it does. So if one of the big selling points is self cleaning, maybe that will remove the perception that the 5D is a dust magnet?

I don't know because I have a 40D with self cleaning and no 5D yet.

Local dealer has the 5D for almost the same as the B&H price, which made me want to walk in and buy one. Then I realised that the state sales tax was going to be $260! No wonder the local shops are being driven out of business. For 50 or 100 dollars I may be motivated to support the locals, but not for $260!

Do I want a full size sensor camera like the 5D! You betcha. I don't care about broad EV or most of the small differences like live view, slightly better burst rate, 2.5 mp gain added to the already wonderful 12.8, don't need the high ISO. So the best that can happen for me is have the price drop on the 5D, when the new one comes out, so I can afford the "old" model.  I know how to clean my own sensor, it's a non-issue.

The new 5D (whatever they decide to call it) will make the Nikon D3 look very expensive.

I expect to see the D3 price fall towards $4000 within a year, sooner if Nikon announces a high speed 16mp thing for the Olympics.