I took advantage of Namecheap's $1.99 + Comodo PositiveSSL deal
It appears I just have to get my host to provide a CSR code.
Just learned the real expense is a dedicated IP $3.95/month at my host.
I'm hoping multiple Facebook Apps and iFrames can be hosted on my shared account with this SSL domain name.
I'm just a little unclear whether the required registration info will be a public record, the actual domain has whois guard.
I would probably use a company name different than the current domain owner info if it were to be public.
Any tips would be appreciated.
I ran across a decent introduction to SSL for Facebook:
Facebook iFrames and SSL Certificates Explained