I've been flamed for this before, but here I go again. I think most members here started with e-cigs that looked more like analogs. Lots of them are junk. The joye 510 is a good unit but you will not get the battery time and will probably end up with EGO style equipment. I suggest starting with the EGO and bypass the money spent on IMO lesser equipment.
To KeysBum and swedishfish - I am in total agreement. I'm pretty stingy, and the idea of buying two or more kits goes against my money grubbing ways. Spending a bit more for the right thing to begin with makes total sense to me. And I love that there are so many options Practicality really matters to me.
Totally don't want it to look like analog! I love the look of the black e-go. Sophisticated, and you won't get the dirty looks (especially here in California!).