What I am about to recommend is SOLID and PROVEN.  Easy to use, and provides a very good mix of vapor and full flavor:

 

Battery
eGo Twist - $22.99 each
The "Twist" allows you to adjust the voltage via a dial.  It. Is. Simple  Makes it to where you can easily fine-tune your flavors.  I like the 650mAh size.  Others prefer the taller 900mAh & 1000mAh versions for maximum battery longevity.

Clearomizer (Atomizer) 
Kanger T2 V2 2.4ohm Clearomizer - $4.49 each
Get a couple / few in different colors - it's great for running multiple flavors and being able to tell them apart.

 

Here's the coolest part about the Kanger T2s - you don't throw them away.  When they start to taste "funky," you toss the atomizer head, slap a new one on,and it's just a like new!  REALLY saves money in the long run.

Clearomizer Head
Kanger T2 Replacement Atomizer Heads - $0.99 each (!!!)
Get at least 5, and in the 2.x ohm range on a Twist battery.  

JoyeTech USB Charger 
Charger (required to charge any JoyeTech eGo battery) - $5.99

 

JoyeTech USB to US Power Adapter -
Adapter (optional) - $5.99

This, my friends, is a great variable voltage setup that doesn't break the bank.  Solid products, and outstanding performance. My daily driver since May 2012.  As always, let us know if you have any questions! =)

 

Best,

Matthew @ VapingME