I was pointed in the direction of this nice little Mac OSX application by Pete of Bleepshow. It does one job very well, namely show all the applications installed on your Mac in a single pane, displaying all their icons. You can also have it sorted (I use A-Z). It’s both rather handy for finding apps quickly, and also for browsing some of the lesser apps you didn’t necessarily know you had installed in OSX (particularly as a newish Mac user like myself). Well worth a look.