You'd better budget more than $20K if you are serious. You'll need softwarem, a damn good sys admin, girls to start and the most expensive acquisition: traffic.
email me
[email protected] and I can point you in the right direction if you're serious, but you'll need more than $20K, but it's a tougher ballgame now with more competition. Hell, we have good webcam software and we pulled back opening a site. Too much good competition unless you spceialize. Do something like fat chicks on webcams or gay cams or something unique, otherwise you'll get steam rolled by Steamray, tricams, ifriends, peekshows, go4livecam, etc., etc.