Which billing system to use with panel?

[hosting2]

I want to sell shared hosting accounts based on plesk panel (with domains, ssl and affiliates) and I'm royally confused in the direction parallels is taking with their billing modules.

We have the built in plesk billing that is being hidden by default now.

We have PPA billing that doesn't seem finished (no ssl support?)

We have PBAS which has almost no 3rd party info on the web (does anyone actually use it?)

And we have a plesk provisioning module for whmcs which seems to be the best option of the bunch from research on webhostingtalk forums.

My current plans are to stay with shared hosting (no vps or dedicated servers, etc).

What do the people here recommend?

Thank you.

 

[abdi]

There are several billing systems out there ...some of which I have used and would recommend are:

1. AWBS.com -> Recommended
2. WHMCS.com
3. G7Bill.com (New FREE product and growing in size rapidly)