I've been thinking of making just such a thing in Access (I'm an Access programmer). It's not that difficult to make it, but I haven't done it yet, because I know myself: I will end up making a program that will also give you all possible grammar information (archaic forms, Greek forms, i-stems, irregular comparison, you name it). In the end, I will have a wonderful program, and I will have spent hours on Latin without actually learning it.
Hmm...I might still do it, of course. If someone would tell me to have it ready by next monday, it might even be a simple program
PS: I've got this wonderful design of a library-database, that lists all possible biographical information about the authors, contents of collections of stories, first lines, etc.; all searchable of course...someday I'm going to build it.
PPS: the advantage of Perseus is, of course, that you don't have to enter the data yourself. If you speak Dutch, try www.latijnnederlands.nl
, it's a dictionary that you can search both ways.