A very handy site for generating ssl certificates -- however, I wouldn't use this for a production site since I don't know if the root authority information is included in all the major browsers. Hence, you will get a certificate warning.

Quoted: StartCom, the vendor and distributor of StartCom Linux Operating Systems, also operates MediaHost™, a hosting company, which offered its clients, SSL secured web sites with certificates signed by StartCom for many years. That's where the idea originated: Free SSL certificates!