Chris, I noticed your message on the chatbox and thought I'd post back here for you, you aren't signed in at the moment for chat.
You want to buy a new ecig and pay with paypal. You don't want to spend a lot of money. I think you are in Italy. You want a small ecig (?). You are going to use it to try to give up smoking.
Here is something to think about -
The only reliable seller I know of for good, cheap ecigs in Italy is HeavenGifts on ebay.
Negozio eBay - elecitronic cigarette: e-cigarette, ruyan, e-cigar You can use Paypal there.
The DSE801 classic/penstyle ecig is probably a good ecig for a starter.
Negozio eBay - electronic cigarette: ruyan: ruyan e-cigarette, ruyan e-cigar
The DSE901 mini is smaller and gets recommended often.
Negozio eBay - mini e-cigarette: Mini Electronic cigarette: mini electronic cigarette cartridge, ruyan
If you are going to quit smoking you need two kits - you will then have two chargers, four batteries, two atomisers and a few cartridges. That should start you off. You will then need to think about getting more cartridges or eliquid to refill your used ones. You might not want to buy large quantities of any particular flavour to start off in case you don't like it. Try a few different tastes.
That should get you started with the basics. If it works out for you and you quit smoking you will need to think about spare atomisers, they break and clog easily so you have to replace them sometimes for good vapour.
Good luck, let us know what you choose and how it goes.