minimal wordpress install

Hi,

I want to install the minimum number of files for my WP install, so that it doesn’t take up too much space on my server. For example, I can delete the classic and default themes in favour of a theme that I’ve selected. Also, perhaps I can get rid of the languages instead of English as I expect only English speaking will want to view it.

In short, which are the most ESSENTIAL files I need to keep WP working.

At the moment the default WP install is about 5mb (version 2.8.2), but then when I use a different free theme the size bumps up to over 10mb which is far too much for the limited space on my server.

Any help would be appreciated. Thanks.