Yes rebuildables are another learning curve - but to be honest if you stick at it, inside a couple of days you get the hang of it.
Good vids to watch would be PBarsado and ToddsReviews. There is plenty out there. I started with a £19 ($20-25) clone of the mini DID, get some spare mesh and Kanthal AWG 30 & 32.
But I reckon as you wanna look at Juices get yourself a igo-L dripping rebuildable. That takes Silica (Fibreglass) wick. Again there are plenty of vid on youtube to show you how to set one of these up. Because the wick is silica you will not get the electrical shorts that you get with Stainless Steel Mesh Genisis Style atomizers.
The igo-L is just a base with a couple of contacts to wire the coil onto. It really is pretty easy, and seriously WILL give you the taste you have been not finding IN THE JUICES you already own.
Good luck buddy - Personally I've been vaping only since end Feb, not touched a stinky since and already spent a .......ing fortune. Mostly on rebuildables and mechanical mods. Now I'm getting into DIY juices so that should keep me busy.
Remember watch alot on youtube also look out for Scott Bonner (igetch69) his vids are pretty informative. Mostly I've given you British vids (obviously) but I'm sure other people here will recommend US ones like ripTrippers JCWest etc etc.
Here's PBusardo reviewing the igo-L
A PBusardo Review - The IGO-L RBA - YouTube
Here's Todd reviewing the igo-ss (basically same thing)
IGO-SS RBA from vapingthings.com - YouTube
Oh BTW Todd always uses Grants Vanilla Custard - a great e-Juice from here:
http://grantsvanillacustard.com/
Hope this helps