Are you going to pay for the hosting so you won't get ads? Or do you want one for free?
For one of the cheapest (and greatest) deals for webhosting, try:
http://www.hostnet1.com
This deal is pretty good. $5/year for a domain name and you choose on of several hosting plans... the lowest is only $2.99/month. This hosting plan Gives you FTP access and online file manager, cgi-bin, perl 5.0+, php (think it was 4.0 or something), 100MG of storage and unlimited sight traffic. Great affordable hosting.
If you want free hosting, try the following:
http://www.tripod.com
They give you a subdomain (www.your-name.tripod.com), cgi-bin, online file manager and online html editor and site builder. A reasonably small banner ad and a one time pop up ad.
http://www.netfirms.com
The banner ad is pretty small and there is only a one time pop up ad. Gives you a subdomain (www.your-name.netfirms.com). FTP access only however, so you'll have to get a FTP program to transfer files to their web servers.