You might recall that I wrote a – rather complex – guide to using squid to intercept and cache Second Life textures, enabling you to improve Second Life performance for an entire local network. I know some few of you are actually using that system, though the setup requirements are quite steep (particularly in background knowledge).
Well, Vex Streeter (I don’t know her/his last name) has gone one better, improving caching performance with a store-rewriter and reducing some of the more arcane requirements. Definitely worth a look!