Looking for automation

I am in the process of starting a webhosting/design business, and was wondering if anyone here knows of any good freeware/shareware that can automate my billing/account setup. I am looking for this in order to speed up the process for my customers.

If I cannot find some freeware or shareware, I will consider buying, so if I can get some reccomendations on good non-free software that would be wonderfull as well.

Thanks in advance.

P.S. -> If someone out there has a copy of good software, I would consider a trade for some free webspace.