I was thinking of buying an ELC subscription to some of the online Oxford reference stuff, when by chance I noticed that through a scheme with local libraries, nearly everyone who has a library card gets free access to the following

Oxford English Dictionary, Encyclopedia Brittanica, Grove Art Online, Grove Music Online, Infotrac (online search of newspapers), Oxford Dictionary of Biography, Oxford Online Reference, WorldBook and XreferPlus (love the Concept Map function in this).

Thought it might be something you could use (and save some money on) - I had to search through the local (Northants) library website to get the links - but it only took a few minutes.