Wow - a lot of different things. That what I like about needlework - for every thing you want to do, for every project are several techniques to make it.

With Tunisian crochet I only know the "brick" variety - it's simple, it's fast and it makes a thick and smooth fabric. For learning to knit with DPNs - take a look at the page of Stacy Perry, Verypink. She has made a lot of videos, too - I love her no-nonsense but friendly way of showing things.