Hi Guys, I need some help picking a first ecig for my dad. He is a heavy smoker, smokes two packs a day and this will be his first real ecig. He bought an ecig once before from the mall, but it was a cheap one that he complained he couldn't get a hit from. This fathers day, like any other holiday, birthdays, Christmas etc., he wants a carton of cigarettes from my brothers and I. But I am going to surprise him with a good ecig instead. After reading the forum, it looks like the Ego Twist would be his best option for getting a good hit and feeling like a real cigarette. I am finding many online stores that sell them, but I don't know which place is best to buy from. Below are a few places I found - one says it's a 900 and the other is 650 is that a big difference? Do both include everything he will need, except the juice? : eGo Twist 900 mAh CE4 Starter Kit Joyetech Joye eGo-C Twist Variable Voltage 650mAh Battery