See... proves me wrong. :)
Reading through these posts, I think a blog to go along with your content site would work (it obviously is for some of you). Just remember to get quality content in your blog.
As to the RSS feed... until SBI comes up with a RSS generating module, you would have to either:
a) blog outside of SBI and copy your content into SBI.
b) Blog in SBI and then get some program to externally process and syndicate your content.
I am not sure which would be better/easier. Probably b.