Are we going to go over some of the settings for some of the plugins?
I installed the Wordpress direct blog, and did not change any of the default settings. Since Ed said that these guys have set this up for complete SEO domination

.
However, it seems that the All in One plugin could have better default settings. Their support page also shows different settings. What is the best?
Use Catagories for Meta keywords (unchecked) [Don't buy it?]
Une noindex for Catagories (checked) [Don't buy it]
Use noindex for archives (checked) [on I buy it]
Use no index for Tag Archives (unchecked) [dunno?]
Autogenerate Descriptions (checked) [ok I buy it]
Help Guru Bob!