I'm looking to park a few low-traffic charity sites there and 'Set it and forget it' (like Ron Popeil). I think having both with and without the www working is a higher priority than SEO, so I'll have to compromise and set A records for example.com and CNAME for www.

If anyone figures out a better practice please leave a comment. My preference is no www (with www 301-ing) plus the CDN benefit, but this probably isn't possible.