This is basically what I have now. Always worked well, the hit was a bit harsh on occasion, wasn't sure if that was the juice or the fact the atomizer was a bit strong.
The EVOD sounds like it's more pain than it's worth. I ideally want something that doesn't require mucking about with too much or parts that are going to constantly go. This is the exact one I purchased:
http://nismoke.co.uk/Kits?product_id=76
Looks like an ego I think?
I got on with it okay but the build of it feels fairly cheap, I want something that feels a bit more solid. The metal cap and the plastic tube parts you put in your mouth tend to come out of line and requires pushing down on a table hard to get it back in line to use properly and on two/three occasions I'd get a mouth full of juice and would have to run from my desk to the toilets to rinse my mouth out which was a pain!
I never needed to buy anything on it and the atomizer seems to go on forever, I was using it for over a month and it worked just as good as when I bought it. Aren't they meant to be replaced after a certain length of time?
I ideally want a replacement that has the end light up if possible to trick my mind into smoking more. When the light went on mine it wasn't quite as nice anymore
Resistances for ecigs means nothing to me as I don't understand it, I presume its how much power it draws from the battery so the catomizer will works harder/lighter to suit the users needs?