Actually, there is almost too much info there but it will ultimately save you money if you buy the right ecig for you from the start. There is a lot to learn about ecigs-batteries, atomizers, cartomizers, mods, juice etc etc and that forum can help. Here's a link to the forum.
http://www.e-cigarette-forum.com/forum /
If you smoke mostly at your computer, I would look into a pass-through and cartomizer combo. I've spent over a thousand dollars on ecigs and I don't think anything can beat that combo for ease of use, satisfaction and savings. A 510 passthrough would be good too and cheaper than the cartomizers. I don't want to recommend any one company because there are many good ones in the supplier section of the ecig forum that sell that combo.
At the very least, make sure you do a search on the ecig forum for any brand/model before you buy it. There are big differences between models and I think a lot of people try one model and are unhappy with it and give up on ecigs. Some of the worst brands/models are also the most expensive.