blender render question!

Hi everyone, new here and kind of a blender-newb, hope you can help with a couple questions. Now, I wouldn’t even bother you, but I’m the kind of person who usually delves straight into new things on his own, and sometimes I end up regretting it; so I’ve been trying, when starting out with stuff, to always ask experts all the difficult questions that come up during the early stages of my experimenting (why should I reinvent the wheel, anyway!?); so here’s my newb questions rundown…

  1. What is considered an acceptable samplig value for rendering images that you’re going to sell?
  2. I’m using cycles but, reading in this forum, I’ve found someone talking about an external program (/component? can’t quite remember) that he said could sample in a 5 min time range with sampling at 5000. Again, I can’t be too sure, but if what I read is true, I guess I could benefit from using such a fast method. So, my question is, is this a thing?
  3. Should I even bother trying to sell all my newbie 3d modeling experiments (cups, mugs and seech)? I guess they’re pretty common, but I wouldn’t say they aren’t good.
    Also, sorry 4 any possible mistakes, not a native speaker…

Impossible to answer across-the-board, as this is always scene dependent.
On some scenes you might get away with a few hundred samples, others might need a few thousand. You have enough samples when the render looks good…

Pretty vague. My guess is that the poster you refer to was talking about a powerful graphics card (GPU), which you can use for rendering instead of your machine’s CPU. Current, powerful gaming GPUs should be able to crunch a significant amount of numbers in little time. Make sure it’s a nVidia.

IMHO no.