The amount of printing you seem to be doing, stay with an laser printer. Inkjets cost too much even if reasonable the overall cost of inks makes it impractical for constant printing, take my word on that.
Getting away from basic laser printers you'll find many do handle large size media like A3, just check thier specs to be sure. I found Minolta, HP and Okidata offer some good choices. Further, if you like color, color lasers are affordable compared to several yrs. ago., so don't discount them. As color output, its more acceptable in cost than any inkjets. Even, the basic b&w laser are real cost effective, many in the under $200 range.
My old Epson A3 laser printer is on it's last legs and I'm looking to replace it. I originally went with a laser for it's print/colour quality and ability to handle larger than average print runs, but looking around it seems that some of the mid-size colour inkjets are just as capable as a laser and at a fraction of the cost.
I'm a little lost as to which printer type would best suit the work I do, so any tips and advise would be most welcome. I need a printer that can print high quality artwork and text, but also be capable and cost effective to handle moderate sized print runs (around 500 prints max on the rare occasion, but usually around a dozen or so on average jobs). It needs to handle both A4 and A3 (oversized if possible) size work and print on various weights and types of paper.
Thanks in advance.