Coding a caching server

I have been researching and have some few ideas about a distributed caching system for a i开发者_开发问答n memory key-value store with replication and all the jazz associated. SO I wanted to know from the community what is the best language/framework/technology mix i should go for.

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Surely you know there's stuff like memcached out there? It's powering some of the busiest sites on the web. No need to reinvent the wheel here.

If you're going write your own anyway, you want to make it as fast as possible, so I'd choose C or C++. Fast, widely supported, easy to write bindings for other languages.