A sub domain looks like sub.yourdomain.com
A domain pointer is when one domain points to another one. An example would be if I type abc.com and it takes you to the site def.com. It is different from parking, but the end result is the same. You can not park on a subdomain.
Some hosts offer addon domains. These are a domain that points at a subdomain. I type in abc.com and it goes to sub.yourdomain.com. (I told you parking is different from pointing, but to explain it is too long. My brain is tired, apache, bind, and some other big words)
What you want is called multi domain hosting. This may or may not be called a reseller account depending on the host, but you don't want to pay per domain.
Multi domain hosting used to be associated with those "unbelieveable deals" offered by those "fly by night" hosts probably because they used the word "unlimited" when reffering to how many accounts a reseller could set up, but now it has become more popular because of people like yourself.
There are quite a few good ones out there, and they do call it "multi domain hosting", so don't let some one tell you they never heard of it before, and try to offer you something like "pointing", parking, or addon domains, which is not what you want. (well maybe in addition to multi domains)
Multi domain hosting will give you the ability to set up each domain seprately, each having their own cpanel, email, everything. You will use "Webhost manager" (commonly called WHM) to control them all.
I hope that explains everything. Now you just need to find a good host.
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