[Lucifiel]

a) UI: I don't really care which UI system you use(code wheel or whatever) but it has to be well-integrated into the game like if there's going to more right-clicking than left-clicking, then you might as well implement a drop-down menu instead.

Still, you might as well use a system where the cursor changes into "a hand icon" when you hover an object you can pick up, a "use icon" when you hover over an object you can manipulate, etc.

b) And yes... have the character/narrator say something about a puzzle but I hope there'll be subtitles. Otherwise, you can't always understand what said person is saying.

P.S. And this is subjective but... I miss well-written third-person narration. *sighs* I completely miss it. Even PS:T couldn't even replace the narration from QFG, no matter how much I wanted it to. And I hope you use this 'cos it adds a certain novelty to the game.