I havent used Usenet before, but I hear from others that which host you go with greatly affects what content is available. I am hearing that most are pretty bad now days with a LOT of password protected files (with no PW given). I am assuming you want to share perfectly legal and legitimate files with friends right? Because talking about piracy on the forums is prohibited.
assuming you want to share totally legal files, I use newshosting, for sharing pictures of my dog. Very reliable and lots of dog pictures. The i use SABNZBD to download the dog pictures, and NZBS to find the dog pictures... newshosting is a very good price to gig ratio, aka 15/mo for unlimited dog pictures. find me in TS sometime doxy
I use usenet and on my MacBook Air I have Unison to download the NZBs, but on my Windows PC I have SABnzbd. I use to use NZBmatrix.com for an index site, but it closed down the other day because of the pressure it was having put on it. I have astraweb for my server as well I forgot to include, which I pay $10 monthly for 20 connections and unlimited, but i believe it is now $15 for newer people.
can hook ya up with a torrentday account if you pm me your emailaddress, but remember piracy is not allowed