The Canon IPF5000 had better be really good. Reading the fine print, it appears that the cost will be the same as an Epson 7800 because they only provide enouch ink, via some undersized cartridges, to fill the lines. So, on top of the printer cost, there is an immediate outlay of $900 (12 ink cartridges at $75 each) if you actually want to print something with the printer. By the time you have a functioning IPF5000 you could have had a 7800.
Of course then you're faced with the question of whether to get two 7800's because of the the ink swapping required when switching papers with Epson.
Looking forward to the review on the IPF5000.