hi, snapper,..i use the VIP..ones reason being they the closest to hand rollin fags i could get?..you get atomisers that screw on the ends!!...a pkt of 5 costs around £7.00 off there site on nett?...a starter kit costs in the region of £15..t..20quid....you can get diffrent strengths of atomisers 16mgs and 24mgs"...i find the 16,s suit me best?...they have diffrent types also?..ie,...hand rollin tobac,...ordinary filter type tobac,..etc,..been using one for 2yrs now and they very good!!...the equivelent of five atomisers is approx 200..fags based on approx 40 decent puffs of each!!....cheers clive