I think i had the same problem with 3DS MadMax which led me to Lightwave (similar learning curve) and finally to Maya (an adjustable and programmable learning curve!) Scene navigation is vastly programmable and even out of the box far, far easier even than Bryce! for example you don't have to dig around with cam controls on a panel (like in Bryce or Poser) unless you WANT to, but instead can just hold down alt. Alt+LMB is rotate, Alt+MMB is pan, and Alt+RMB is zoom in/out. Select an object and press "f" to focus on it. Stuff like that... i find that even in Rhino I'm constantly pressing alt to move around which just messes Rhino up, and Bryce has become cumbersome compared to the scene naviagtion tools i've been using for the last few years. I guess when something clicks, it just clicks! and it's all preferential, unless of course you have a job to do.