“…Lighting is not as complicated as some make it out to be... ….if you intend to get serious about lighting, like shooting large groups, events, glamor or want to use your lights outside, then you will want to get strobes. If you understand how speedlights work in manual mode or/and off camera, then strobes should be an easy transition.”
Chris C. (Chiefmasterjedi) is so right in the above statements.
Basic, manual lighting isn't that hard. I have a variety of strobes, from the smaller Nikon shoe mounts through Quantums and studio strobes, and I almost always operate in manual. Just get a couple of good studio strobes, like the AB800 models, and practice, practice, and practice some more. Don’t be intimidated, it’s not that hard.