I\'ve always been a proponent of multiple forums. It just makes it easier, in my opinion, to find what you are looking for when the posters as well as the moderators try to categorize the postings according to their content.
I understand the idea behind the \"one stop shop\", but that just doesn\'t suit me. I always go into the top level forum home anyway, then click into the appropriate category (which in this case is just the one category).
The moderators keep track of the postings and move the topics to the appropriate category when they are mis-posted. I actively participate in three forums in the internet (including this one) as well as run a couple of my own. This is the only one that has a single forum for everything.