I am looking for some free/cheap software that can do all of the following:

Billing system
Accounting and recordkeeping
Support system
Order processing

Does something like this exist?

You almost always have to pay for something like that.

I guess you could check out: www.hotscripts.com

they should have something there for you.

A different solution may be getting a reseller account that offers this software for its resellers :)

There are some good ones available free on the download.com , cant remember the accounting software name, it is almost the same as Quickbooks but using MSDE , you can try a search for accounting software there. Cant remember the name but it is free.

Thanks I will give it a go.

Might want to check out whois.cart and cerebrus.

phpCoin (www.phpcoin.com and located in Fantastico) is free but not the best billing software out there. But hey for being free it does get the job done.

I don't think the next release of phpcoin is going to be free.