There’s is a new WordPress cache plugin called DB Cache that claims to be faster than WP-Cache or WP Super Cache, and in my opinion 1BlogCacher also falls in the comparission. This plugin caches PHP calls i.e. every database query with given lifetime. It is much faster than other html caching plugins and uses less disk space for caching.
Check out, and report your experience.
1 Blog Cacher is still the tops. DB Cache is crap with its limited view of the caching world. WP-Cache and WP-SuperCache became cumbersome and oldfashioned the moment 1BC was released.