Wow, I read through 10 pages to make sure I didn't repeat myself when I went to recommend Brothercake's dropdown menu, and you went ahead and got it already. Excellent script. Works on everything. 
It does seem to clip behind the ad when the ad uses an animated gif in mozilla though. Does your ad script set a z-index on the ad or something? At any rate, you can also configure that menu to be stacked vertically. Putting it in the left column would keep it from conflicting with the ads.
My main organizational suggestion would be to go into "guides" and "resources" and "black pages" and whatnot and take all the OGC/free stuff and put it in one place. I use your site for news, but rarely check the freebies because they're kind of buried. Heck, the black pages really need to go in favor of a category that tells me exactly what it is.

It does seem to clip behind the ad when the ad uses an animated gif in mozilla though. Does your ad script set a z-index on the ad or something? At any rate, you can also configure that menu to be stacked vertically. Putting it in the left column would keep it from conflicting with the ads.
My main organizational suggestion would be to go into "guides" and "resources" and "black pages" and whatnot and take all the OGC/free stuff and put it in one place. I use your site for news, but rarely check the freebies because they're kind of buried. Heck, the black pages really need to go in favor of a category that tells me exactly what it is.