I would love to find a DAW that had more flexibility when editing in "staff" view
I would steer away, based on my somewhat limited experience, from notation programs; unless you have a great need for all the extremes of nuanced scoring. Working with Cubase 5, I found it has a few limitations in scoring, (awkward support for multiple time signatures or many time signature changes, the GUI score window seems to get confused but underneath the system does track the changes) but it should be given serious consideration. Also, when composing and editing first in the Midi editior and then switching and working into the score, you may have to push the scoring features to the max to make the score look right, again, things work out very well in the end, just requires great amounts of patience and perseverance. Steinberg has no trial versions, but you can download the manual for version 6 from the website. I have found that the printing somewhat limited too as Cubase can't seem to print to larger pages than 8.5 x 11.5 (in)
Having said that, the finished product will rival anything, I mean all commercially available that I have seen ( a very large sampling as I was in the business at one time), printed products on the market.