I have the Pixma 9000. Got it for $150 after rebates when I purchased my 40D with it
My impressions --
The printer is *big*. Weighs 30lbs, but really once you put it in place it's not going to move anywhere
Has rear wheels in case you need to scoot it away from the wall (because you have to use the flat feeder for thick paper).
Ink and consumption - I loaded up my printer with the supplied 8 cartridges. So far, I think I've printed somewhere around (13) 11x14" prints, (3) 13x19" borderless, and maybe a couple of 8x10s for testing. So far, I've had to replace the PhotoMagenta and Yellow ink tanks at around $13 a pop. "red" and "green" tanks are still showing full on the monitor, so you may actually waste your money if you buy these 8-pack refills from amazon, etc.
After those prints
and the replacements I installed, my ink shows as follows:
Green, 100%
Red, 100%
Photo Magenta, 100%
Black 75%
Photo Cyan 50%
Cyan 75%
Magenta 50%
Yellow 100%
Doing the math by adding up all my estimated printed square inches (disregarding the border on the 11x14 prints) and dividing the dollar amount of the ink I've already used (assuming $14 for a full tank, so a 75% tank indicates $3.5 used, etc.)
I've calculated, very roughly, the following
Cost to print 13x19 borderless = $4.15 plus paper
11 x 14 = $2.5 plus paper
8 x 10 = $1.36
Or, basically, $0.0167 per square inch printed.
Very rough numbers, but gives you a ballpark figure.
Print quality - Great. I'm using Red River Paper 11x14" Arctic Gloss, as well as Canon's own 13x19 paper. Canon's Museum Etch gives a nice effect to black and white photos.
Software - Comes with an Easy-print software which is pretty easy to use, except that you can't interface with the print driver like a normal app, so you can't select custom paper sizes.
Overall -- it's a decent printer and gives good results. Fairly speedy.
The tanks are see-through, so you can see just what the printer considers "empty", which is nice.
Now, the complaints:
1) It doesn't support 11x14 paper natively. I'm not sure what the piss Canon is thinking by not supporting this paper type...oh, it's only one of the main portrait sizes.
2) You aren't allowed to print borderless on custom page sizes. You can only print borderless on what Canon wants you to. Yep, that means I can't do borderless 11x14, but must leave about a 0.15 inch margin on the photos (which a frame should cover anyway)
You also can't print borderless on certain paper types. Remember that museum etch I mentioned? No borderless allowed.
"Photo Rag" ? No borderless allowed. It's pretty annoying, and they don't really tell you this until you unwrap the paper and on the back of the paper's instruction sheet is a note saying "oh yeah, forget borderless".
Luckily I bought a sample pack of the 13x19 Canon stuff, so I found out fairly cheaply about this limitation.
3) Ink tanks update in 25% increments. Not a huge thing, but was a large jump the first time I saw it.
4) The printer driver lets you specify paper dimensions physically larger than your printer can accept.
Overall, not a bad printer, but the lack of native support for something as common as 11x14 really irks me. It's a nice printer, though.
You might want to look up reviews of HP large format printers and maybe Epson. I know both of them support 11x14, and I believe the epson supports really long paper like 44" max, unlike the Canon.