Word Press Super cache is installed by default from all newer versions of Fantastico in WordPress installation. If you want to remove it you can just disable it in wp-admin/folder.
Tips for WordPress plugins:
Using many system resources:
- WP-Cron plugin
- Google Sitemap plugin
- Unique_articles plugin
- Most SEO plugins
- Galleries and some players, but sometimes it depends how you use them
Using fewer system resources:
- WP-Cache plugin
- WP Super Cache plugin
- WP Widget Cache plugin
- PodPress plugin
