could go for a dct tank either the 3.5 ml or the 6ml version along with a plint and some dual coil cartos maybe ?
http://www.cloud9vaping.co.uk/epage...s/yxve46fvrnud/Categories/Cartomisers/SMOKDCT you can see what it will look like on the link.
your need a tank(size/colour your choice)
plint (just for looks)
http://www.cloud9vaping.co.uk/epage...e46fvrnud/Products/B70-72/SubProducts/B70-72- D or J for the larger tanks or C or I if you get the smaller tank
and some XL cartos
http://www.cloud9vaping.co.uk/epage...th=/Shops/yxve46fvrnud/Products/DCT-CARTO-5pk
many other places also sell the above,or get a vivi nove talk as said
http://www.cloud9vaping.co.uk/epage.../Shops/yxve46fvrnud/Products/VIS-NOVA-KIT-LRG
just take a look on youtube for the many types of tanks systems around, youtube users: igetcha69 , pbusardo , grimmgreen and Todd ecigreviews would be a good place to start.
or you could just get the eGo-C Type B Base & Body ,(very similar to what you already have just have replaceable heads and hold more juice)
http://www.cloud9vaping.co.uk/epage.../EGO-C-52-BASE-B/SubProducts/EGO-C-52-BASE-B- your also need Heads and Cartridges .
so much choice
just yourtube ask before you buy anything as some attys/tanks work better than others.
gl