You're good with what you have on hand honestly. For inserts, try 3 layers microfiber sandwiched in between flannel or stretch terry. I do my inserts from a zorb 2 tri fold, but not everyone likes that stuff.
As for patterns, I started out with the DDU (
Darling Diapers). But, my sister is a pattern designer and has a ton of wonderful patterns (
Rocket Bottoms | Facebook). It all depends on what you're looking for. And, what pattern fits one person's baby, may be totally wrong for you. This is why I have almost every diaper pattern known to man in my collection. >.<