We just finished getting our server setup and running with some clients. We have two P4, dual Zeon, 1 gig RAM servers and we can set you up with some great adult hosting.
We don’t have the client login section done yet but the control panel and client area will be done by the end of the month.
Check out our plans at
http://offnetsolutions.com/web_hosting/ and see if you like what we offer. We are using PayPal as a CC and check processor but I can also send people a paper statement each month if you need it done that way.
Hit me up on ICQ or by email (rob@offnetsolutions.com) if you have any questions.