I need (alot) of molding questions answered...

Hi all, Im a total noob when it comes to anything along the lines of putties and silicone and resins -so basically everything that has to do with minifig customs- the most Ive ever done is made some decals but that only goes so far. Anyway, here are some questions I have:

To make a mold, what kind of silicone should I use, and where can I find it? Ive checked some different sites and all but there are so many differrent options that Im not sure what would actually work.

Where can I get some good resin? And how can I tell what resins are good and which are bad? And what about dyes for resin? where might I find those?

 Last question, what should I use to add color -in certain areas- to models once I make them? Should I use some form of model paint, or sharpie markers or are there some kind of "model markers"?

So yeah, as you cxan judge by this, I have absolutely no clue about what to go with. Seeing as how Im on a tight starting budget, Im just hoping for some suggestions on some of these items as far as brands to look for, what specifications I should note when purchasing and whatnot.