I have a file locker here because I have a few things for sale. You can create some things and renderosity will give you a locker. It gives you a place to park the file while the marketplace approvals are done. You can also post freebies there or add-ons for your commercial products.

I also have 30mg through my internet provider that is paid for 1$ per 10meg. I'd have more but 30 is the max they host unless I get a business account.

I have a 10meg site through yahoo geocities. this is free but has restrictive bandwidth. More than 5mb/hour downloaded and the site shuts off for an hour. I could upgrade it for 9$ a month but there are better commercial sites with more bandwidth available.

THere are lots of different options available but if you want anything half way decent you will have to pay some kind of fee.