You might look at a HP Laserjet 5000 series printer, with the introduction of the 5100 the 5000's should be clearing out at pretty decent prices. It will do full bleed 11x17, 1200x1200 dpi. They're also extremely reliable. They are, however, $1200+ for the base model 5000 with only one cassette tray and no ethernet connection or duplexer.
Very nice printers, though. I know Epson used to have some pretty reasonably priced wide format Stylus printers, I dunno if they still have anything like that though.
You might also look at a Deskjet 1220cse, they're 1/3 the cost of the laser & should do pretty decent output. Unfortunately it's an inkjet.
Viper GTS