SEO Plug-Ins for WordPress

I've been meaning to put out updated thoughts on plug-ins but as usual have been a bit too slammed to not neglect this blog. Given that Graywolf recently updated his list, I'll drop some stuff:

• Spam/security protection aside, my preferred combo up until recent weeks/months used to be SEO Title Tag, Robots Meta, UTW, Another Wordpress Meta, Dofollow.
• At this point though I find that all that can be more than covered using Headspace 2 (slightly modded in cases where one wants to use noarchive) along with Nofollow Case by Case. Add in Google XML Sitemaps, Ozh' Better Feed and PagerFix if/as applicable, for bonus points.
• Performance: No Ping Wait, WP SuperCache
• Spam/security related: Wordpress Database Backup, Akismet, AntiLeech, Bad Behavior, HTML Purified and... (what, you expect full disclosure?)