I've been finding myself with a lot of time on my hands lately, and I've been getting that itch again... the itch, the urge to design adventure games again. I still have my pet project, By the Sword, on the backburner, and have for some time now.
I've also been playing Runaway 2: The Dream of the Turtle lately, and completed it just now. And no, I still can't claim that I've beaten an adventure game without cheating.

But anyway, playing Runaway 2 have just reinforced that desire to start up BtS again, but then I come to the inevitable impasse: how do I do it?
I've gone back and forth with the graphics... at first I used Poser for all 3D scenes, then I was trying to use Bryce... then I tried learning 3D Studio Max... then I toyed with the idea of hand-drawing all my background, but I honestly don't know if I can do that. I'm not a good drawer by any means, and my 3D skills are minimal at best.
Runaway and Runaway 2 used a combination of 2D and 3D graphics to create an incredibly detailed and graphically amazing environment, and I'm more than a little intimidated.
How should I proceed? Should I stick with 3D graphics? Try to hand-draw everything? Perhaps use 3D as the basis, then hand-draw over that? I'm making it a hi-res game (which has always been the plan), and that decision is definitely final. How would you guys suggest I design the game's backgrounds, objects, and characters?
I may have answered my own question with the drawn-over-3D idea, but I have a feeling there's more than that at my disposal. I've had an entire decade to refine the story and details, so that definitely isn't a problem. Am I thinking too much about the little things?
I need some guidance here. Any help would be appreciated.