WP-Super-Cache : Which of these plugins need replacing?

I am thinking of installing WP-Super-Cache in order to (hopefully) solve a problem I’m having with my blog using too much server memory (650Mb+ on a 256Mb VPS). But before I install it, I’m wondering which of these plugins will need replacing because they won’t work on a cached static page?

– Copy Feed
– Akismet
– Autometa
– Get Recent Comments
– Highlight Author Comments
– Now Reading
– Post Plugin Library
– Random Quotes
– Share This
– Similar Posts
– Twitter Tools
– WP-Print

Any feedback would be super appreciated!