If you are going to be planning on using LR and dual coils I would consider going with a 3.7V PV and not an eGo. The eGo is 3.4V.
Using LR and DCs on an eGo puts alot of stress on the eGo mosfet. While many people do use LRs on an eGo without a problem, theres also alot of people that have ruined their eGo and turned it into nothing more than a paperweight. Its one of those things that is only a matter of time before you fry the mosfet. If you are going to go with an eGo, I wouldnt use anything lower than 2.0ohm. 2.0ohm def lessens the chance of frying the mosfet. With a 3.7V you will be able to use a wider array of attys/cartos, like 1.7ohm, 1.5ohm, and DCs.
Id go with an E-Power, kGo, or like someone else mentioned the Riva. The 3.7Vs will give you a slightly warmer vape and alittle more TH than an eGo, plus can handle the LRs much better. The Riva, kGo, and E-Power are all great PVs that are affordable. LibertyFlights has a great deal on the Riva, Hoosier has a good deal on the kGo, and CCV has an awesome deal on the E-Power.
I have the E-Power and really like it. Its the only one of the three that uses non-proprietary batteries and to me that was important. E-Power batteries cost $4 compared to kGo/Riva/eGo batteries that are $14-20. Plus the E-Power batteries last much longer before they need to be replaced and since it uses non-proprietary batteries, its very easy to carry a spare. You get 2 batteries with the kit and they are 1050mah. I get about a day to a day and a half on one battery. Everything is replaceable on the E-Power so it really keeps costs down. That was also one of the things that made me lean toward the E-Power. With the eGo/Riva/kGo, if you need a new switch, or a new battery, you basically have to replace the whole unit since the tube, battery, and switch is all one piece. With the E-Power, the tube, battery, and switch are all seperate pieces and they can all be bought individually. So if you need a new switch, you can buy just a switch and continue to use your existing battery and tube. If you need a new battery, you can buy just the battery and use the tube ans switch you already have. That was important to me since Im a college student on a budget, but to you that might not matter. And I havent found a atty/carto that the E-Power hasnt been able to handle yet.
If you get the E-Power from CCV, youll get $25 in free extras.
You get a free 5-pack of Ressurector cartos, a free 30ml juice of your choice, and free shipping.
Put in "ecf5off" and youll get 5% off the order. Its a really good deal.
Like someone else said I would recommend you try cartomizers. They are much easier to use than an atty/cart and hold a LOT more juice. Youd get a free 5-pack of Ressurectors so you can try them for free. Their 1.7ohm LR and hold 2ml of juice.
The Ressurectors are what I use daily and they are awesome. They produce vapor similar to a dual coil but because they are single coil, they dont drain your battery like a dual coil does. And since they hold 2ml of juice, they can last all day.
If you like dual coils, a few vendors carry a dual coil that is made specifically for the E-Power. Its 1.5ohms and hold alittle over 5ml of juice, which is pretty ridiculous. Personally I dont love tanks bc they dull the flavors of my juices, but it is nice that they hold so much juice. The dual coil for the E-Power holds just as much juice as a tank and gives great flavor and vapor.
I personally like the E-Power but I know plenty of people that LOVE their kGos and Rivas. LibertyFlights def has a great price for the Riva, and its a very popular PV. The kGo has long battery life(1100mah) and Hoosier has a good deal for the kGo kit.
All three are great PVs and I think would give you exactly what your looking for. They all produce a LOT of vapor and give great hits. You could use a tank on all three as well as DCs and lower ohm attys/cartos without a problem.
Dont get me wrong, the eGo is a great PV. Many, many people use them and love them. But for a new vaper, thats not experienced yet, I think a 3.7V is less likely to give you problems, especially with LRs and DCs
Goodluck!!