I would recommend a Super T Manufacturing - Precise 16. I'm new to vaping but have done the research and if you smoked a pack a day, you probably spent over $100/month on cigarettes anyway. The eGo seems like a good unit, but the batteries are expensive @ $16-$22 and not always reliable. If you buy a mod like the Precise, you get something that is solid and elegant, and has a lifetime warranty, and the batteries are less than half the price of the eGo replacements, and they last longer on a single charge. Not to mention you can buy them almost anywhere as they are generic li-ion protected rechargeable's.
In the end the decision is yours, but after using the Volcano E Cig V-cig for a few weeks and realizing I needed something several levels above, I came to the conclusion that Super T has their **** together and can deliver what I need.