I'm using an E-Go type CE4 battery with clearomisers. Currently getting the clearomisers (the tanks) from Amazon for £3.60 for 5. I get my liquids from a couple of places, but at the moment using the Diamond Mist brand from 7dayshop, it's £1.99 for a 10ml bottle plus postage - all I do is throw a few into the basket when ordering printer cartridges/memory cards etc. There's some nice ones and of course some not so good. The Havana flavour has a mild after taste of cigar but not over powering. Virginia mist and US mix are pretty decent ciggy ones.
The other place I use online for liquids is electro-ciggie, they keep a nice range and they post out pretty fast.
Of the non-ciggy flavour liquids I use the most I like vanilla, cherry, coffee, banana and chocolate. But I find all the non-ciggy ones get a little sickening if you try to use them all day.
Try mixing a couple together, nice having a ciggy flavour with a hint of vanilla etc.
I've been off the fags since the start of October. Best bit is that although they're not allowed at work, no-one can tell if you sneak to the bogs and use it :-D
Bonus of course is the bank balance, I was getting through about £140 a month in tabs, I now get through about £10-£12 for liquid and a couple of tanks.