H Niemand, do you like the epower more so than the Riva batts? I started vaping over the summer with an m403 and moved on to the Riva kit and couldn't be happier with it performance wise. So yeah, here's another vote for the Riva kit, JenWill. Just go for it! It's your best bet price and function!
Never tried the Rivas. I do like the Epower. Also, I just got a new eGo type VV kit from Ecigg.org. It's my first experience with a tank system and I like it. I also like the voltage options it gives me. I think it's 3.2, 3.7 and 4.2. Guess my next will be a VV mod.