Hi Matt and welcome.
An ego style battery like the Tornado is a very good place to start, but as others have said, I personally didn't stick with the tank system for long. But put it this way, over a year later and I still use my ego batteries despite owning bigger battery mods. They're my backup and my out and about vape and I swear by them.
You've got yourself a good basis to branch out later on with different atomizers and cartomizers, once you find your feet.
As for the information out there. Just be choosy about where you go for that info, you're off to a cracking start by coming to the ECF. Also, be aware that there are quite a few lobby groups like ASH who seem to have an agenda, and that agenda appears to be NRT. The picture is never clear at the beginning but it soon starts to become more so as you dig around and get your bearings.
Besides the ECF, another excellent community is
UKVapers, and there are more still that offer similar support and knowledge out there.