I have noticed that on the Files section of the site you don't list many of the file mirrors for open arena. The majority of people downloading the files will go to this section to download it, so why not create a bigger list of mirrors?
I myself have a file mirroring site and am always happy to support great projects such as this by mirroring their files. Having lots of mirrors can help take strain off other mirrors and people have the choice or selecting a mirror closer to them. Also if one mirror it going slow people can just try another. So why not add more mirrors to the files section or do what a few other projects do i.e. Goldeneye:source and Rock24 which use a Wiki page for their downloads section. So anyone who has a mirror can add the mirrored files to your site and it can be moderated if a mirror goes down. I know that you have a Wiki page with this, but few people would even think to try that page (Maybe linking to the wiki page in files would be a good idea). I have also seen lots of people posting their mirrors on the forum. Why not consolidate them on to the files page?
The same applies for Map packs again people are posting them on the forum but their isn't a Wiki page with a complete listing. I hope my suggestion is a useful one and one that you would considerer.
Goldeneye:Source Downloads Page
http://dev.goldeneyesource.com/wiki/index.php/Beta1_MirrorsRock 24
http://developer.valvesoftware.com/wiki/Rock_24#Downloads 
