I see you've included WPeCommerce.
I was wondering whether you might like to consider adding:
WooCommerce - since it's one of the most popular shopping carts at the moment - http://wordpress.org/extend/plugins/woocommerce/
WP Social Booster - for Ratings - http://wordpress.org/extend/plugins/wp-social-seo-booster/
BP Checkins - imath (author) is very BP friendly and it's a plain checkin plugin - http://wordpress.org/extend/plugins/bp-checkins/
That's once I discover how to make A4WP actually trigger on my site :)