I switched from Ronson to torches from DealExtreme years ago (thx, T.G.)
This is my current favorite:
http://www.dx.com/p/jet-1300-c-butan...lear-tank-1455
One tank lasts for weeks - and I enjoy 3-6 cigars a day. There's lots of other good ones, too. Shipping takes about 2-3 weeks, but is free. You can try 10 different models for less than $40.