I suggest you try an inexpensive yet high quality pyrex glass tank from
http://www.e-cigarette-forum.com/forum/tank-reviews/349222-ibtanked-pyrex-glass-tanks.html Prices start at only $20. Everything that you need can be ordered from the website. Glass tube in your choice of two diameters and two lengths, multiple choices of stainless steel or acrylic endcaps, pre-punched cartomizers in both lengths, and drip tips.
The above link is to a full review I did on these tanks. The vendor's website is within the review and includes numerous pictures of my own and other ECF members' tanks. These have become very popular quite quickly.

I personally prefer single coil cartomizers over the dual coil cartomizers. I also found the vivi nova type tanks to not provide the flavor that cartotanks can provide.
Beware of some tanks that use a clear plastic tube (polycarbonate). Certain flavors can crack or melt this plastic, most noteably cinnamon and citris flavors. There is a list here of these flavors known to crack or melt plastic here:
http://www.e-cigarette-forum.com/forum/tanks/219179-lets-make-list-juices-flavors-crack-tanks-ce2s-clearos-29.html#post7203876
I also highly recommend the following tank tool. You can see how to fill and assemble a carto tank in this video also.
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If you are able to (I see you are a new ECF member), view my blog entries under my username/avatar, I suggest you read my article on single coil vs dual coil cartomizers. There is a list of single coil prepunched cartomizer vendors with direct links within this article.