it may not be "new" anymore, but the HP 1055cm we have in our office is a VERY nice piece of work. It serves an office of 20 with no real conflicts at all - only some minor coordination when a big set needs to get plotted. With a 36" bed, D size 24x36" plots are DONE by the time I walk 20' back to the machine. We find the 'draft' setting to be adequate for most prints, but we use the normal mode for issuing CD's and the only time we need the 'best' setting is for full color high res images.
It is CMYK based inks, all in separate cartridges that the machine monitors and can change out in the middle of a print and resume without interruption. has been fairly maintenence free, but we have preventitive service every 3 months or so, and it has gummed up a few times, usually after a really heavy color plot load (4-5 full color presentation boards 30x42) with saturated colors on coated papers. I can usually get it working myself, and I'm by no means a mechanical genius...
it works great as a printer too, but like your current model, takes a little while longer to start printing, and can't que up both plots and prints at the same time.
rates about an 8 on a scale of 10 - there's got to be someting better that I haven't seen! I wasn't around when the machine was purchased, and I haven't checked prices yet, but I like it a lot and people say I have expensive taste...
let us know what you find!
Wes