I have Twists too, and have recently starting dripping. My absolute favorite so far has been the two 510 dripping atomizers that I got from SmartVapes. They were really affordable (about $5.00 each). They're designed especially for dripping and are sealed, low resistance ohms.
I have seen others comment that they are as good as higher priced atomizers....
If you decide to try dripping I'd recommend that you buy:
510 connector - otherwise your atomizer won't fit properly on your Twist, it needs to be raised due to the inverted twist battery connection
drip shield - This will help to keep it all neat and prevent a mess. Also nice to not worry as much if you over drip a little
drip tip - the one I got at SmartVapes broke, so I don't recommend those although everything else I got there was great.
Shorty cone or similar cover (optional) -- this is for aesthetics only. It covers up the 510 connector and makes the setup look streamlined. This item isn't available on SmartVapes site as far as I can tell. Here's a link to the cone cover that I got:
eGo Steel Sleeve Cone Type A and B
Here's a link to one of the S,artVapes 510 atties (they have two different 510 atties):
SmartVapes 510 Dripping Atomizer long Barrel 1.5ohm
I have really enjoyed this setup. All told it's probably about $15 - $20 with shipping.
Hope that helps.
EDIT: I should have specified that the 510 connector is a 510 to 510 connector. There are different kinds out there, but this one is 510 on both ends, and is for just this type of use. The ones on SmartVapes are long 510 to 510 connectors, but any 510 to 510 should work fine. ALSO: When I got my 510 to 510 connector I thought it was broken. Turns out there was a tiny nut that I had to remove by unscrewing it from the connector.