DEvin,
I bought a 5v passthrough and USB/wall plug at Madvapes to try 5 volt vaping. I get as much vapor on a 2 second inhale with that PT compared to a 5 second inhale on my Riva/eGO! It was @ $25 for the PT and plug. I carry it room to room in my house and use it while at home.
I just ordered an Infinity kit:
Infinity
This mod is interesting to me in lotsa ways. I can choose between 3.7 volt vaping on up to 5 or 6 volts with a dial. It is regulated and that means the vape will be consistent until the battery dies- no more decrease in vapor as the battery is used for hours. It can use regular 510 attys and it won't blow them if I vape in the lower ranges. I think it's beautiful looking.
They also sell the "Buzz" mod there that is very popular with the ECF folks. It isn't as perty as the Infinty and it costs about the same. You need to adjust the voltage with a screwdriver though and that kinda made me nervous
Good luck in your search
Lori