APV- Advanced personal vaporizer. - A mod.
How much do you want to spend? You can get a pretty nice VV/VW tube or box mod for $30-$50 or something like a Provari for around $160 on up.
I like and use my Reo quite a bit, but I also like tube mods as well. I'm not into rebuilding, so with the tube mod, I use cartomizer/tanks. But many people love clearomizers (vivi nova, protanks, etc.) or rebuildable atomizer systems.