Max resolution Bryce can achieve is 65535 x 65535 pixels, when rendering to disk. At 300 dpi that's 218+ inches per side, or 555 cm. Also, it would be a 4GB file, just for the render. I know, I tried. :-) Large size printing goes at much lower resolution. For something five metres long it can go as low as 25 dpi. Yes, twentyfive. Depends on what the printers want. Poster size can be printed at 150 dpi and that would be something like 3700x2700 pixels for a B2 poster (50x70 cm). Learning curve is very shallow. As rj said, Bryce is very easy to master. OTOH, as I said a couple of times here, it's not as easy to be a master in Bryce because the curve is also quite long. But the shallow learning curve draws you in much easier than the sharp cliff that waits for you at the beginning of work in max or Lightwave.

-- erlik