Unless you make nothing but black text on white paper, 300 dpi shall be absolutely enough. The Hp designjets I use at work e.g. have also 600dpi, but basicly they make a pattern for each color, so you don't need the full resolution. Of course, if you have a fast PC and you want to show him who the master is, use 600dpi

But this way you end up with 4-times more data, and as Frobozz stated before, this could really do something to your system!
I know it is looser-software

, but I just can handle CorelDraw much easier then the Photoshop. And, I even paid for Corel, if it only wouldn't have this XP-bug when looking in the printing properties, argh!
a good "average" for early cabinets would be 6" x 24
Sounds good, I currently got my plans with 7,8"x26", but I'm glad for any inch I could get free space above my head. Well, in the earlier days I never realized that this marquees are so low! But maybe I'm just to tall with 74". (sorry, have alwas problemls handling with foots, just got familiar with inches at least)