Hoooo boy... where to start. Suffice to say I've made a bad mistake.
SONAR 7 was perfect, aside from a few issues. However, given the lack of a demo, I was swayed by the possibility of getting Cubase 4 very cheaply... just to settle my speculations that it might be better at some things. The opportunity came up, I had a bonus that month... and decided to leap for it.
I won't bore you with the details, but I was amazed to find:
1. You can't read VSTi note names from Drum Machines like RMIV, Battery etc. Odd, given Steinberg created the VST format!
2. The MIDI editing is actually worse in many respects. SONAR's Smart MIDI Tools for the win!
3. Nothing even comes close to ACT.
4. The score editing 'improvements' are nothing to write home about. Symbols like marcatto etc. just have options to affect velocity. That's it. You can't assign crescendos to CC1, CC7, CC11 etc.
5. No mousewheel scrolling.
On the plus side, it does have a MIDI arpeggiator that actually works.

(Cakewalk, the MFX Arpeggiator needs a
FIX, not another glossy graphical tweak, heck, the one in P5 works, can we not have it in the flagship??)
Yeah... I know.... I should've known. But in this instance curiosity killed the cat. (but at least it's sellable...)
*points finger at Cakewalk forum and puts on ghostly voice*
"Beeeeeewaaaaaare...."