That were some good points

... but in your case Belford I think that there are more little files. In this case someone downloads 1gig of textures and the quota is depleted hugely.
Let not have bulk zipped textures, let's make the people browse before they can deplete. We can do the math if we have a 1gig texture "pack" that all of the active writers download (say 50)--that would come out to 50gigs of depleted quota for just one file. 50gigs is quite a bit when it comes to quotas from what I've seen.
So, I think that we have two clear possibilities:
1) Get a quotaless server and make the writers pay though the nose
2) Try to reduce bandwith consumption per user
One in my case is an impossibility in my case (I assume the same goes for many others here as well).
So, we are left with two. We need to find some way to not have people using this thing like crazy and downloading millions of bytes more than we can all afford.
Currently getting some ink on my hands over at the Guild Of Ink-Makers (PyPRP2).