welcome to the forums! there are hundreds of suppliers online. i first started with v2 cigs also back in 2010, my next step was the ego twist, i now vape mods but i doubt you want to get into them at this stage. i suggest you guys get some standard ego's or the ego twists if you want to venture into variable voltage both are fairly cheap in the 15-25 dollars range, they are also easy to use and theres plenty of kits that different suppliers offer. the best bet for your juice delivery system would be cartomizers just like the ones you would use with the v2s or clearomizers/CE4's and theres many different types to choose from, i dont use them anymore so im not too updated on them but maybe someone else can suggest a good clearomizer for you. i dont recommend staying on the pre-filled cartomizer road like the ones you have been using, trust me there are soo many different types of juices out there and you can sample and find the ones you like best. your v2 cigs used 808 threads, the ego's use 510 threads so anything that is labeled 510 will work with them. so all you would need is an ego battery, charger, cartomizers/clearomizers and juice. i suggest you get multiple ego batteries because you want backups just incase, trust me on this. You might spend $100 on your first big order but its a great investment and vaping becomes a great hobby for most people. im sure other people will add anything i missed or suggest other routes. it might sound confusing at first but it really isnt, just take it slow, if you are really confused on a piece of paper right down categories, one for your battery/charger, one for your juice delivery system and another for your juice, under those categories just list your options and any specific detail to each category and you can figure everything out easily and come up with questions for each.