Okay, so then for a reliable, easy, not-too-big PV with good battery life and low maintenance, I would suggest going with something like the Joye eGo. It's bigger than a 510/Volt but smaller than most mods, fits nicely in a pocket and has been the workhorse of most of us here at one point or another. I have 6 of them myself, great little devices. A typical kit comes with 2 650mAh batteries (good for 4-8 hours of vaping or more depending on how much you vape and what you've got attached), 2 atomizers, 5 cartridges, charger(s) and possibly a little carry pouch.
For what to put your liquid in, if you want a no-hassle, fill-and-forget system that you can fill in the morning and still be vaping at bedtime, get some eGo Mega Dual Coil Cartomizers (colloquially known around here as EMDCCs.) These are high performing, large volume cartomizers tailor made for the eGo. They hold around 4.5ml and for me, lasted me more than a full day on a single fill. They perform great, taste great, produce plenty of vapor, and are inexpensive enough ($2.50 ea. from MadVapes) that if you don't want to be bothered with cleaning them you're not spending a whole lot of money to replace them.
As for taste ... well, that's where the fun happens. Taste is always subjective of course so what juice to use and what strength is going to be a matter you're going to have to try for yourself. You already know you won't get the flavour of burning tobacco and paper, so if you have some idea of what you want we can probably steer you in the general direction of what might satisfy you. But be aware also that oftentimes, what we
think we want turns out not always to be what we
actually want. Lots of people enjoy tobacco flavours, and many of us when first starting out thought that's what we should get too, but ultimately discovered we preferred something else entirely, so don't be surprised if you get something and find you've a hankering for something else instead. Or not -- we're all different.
It may take you some time to really find what you want, but as far as I'm concerned, an eGo setup with some EMDCCs is a great starting point.