Many of these maps are hosted on my SC server, you can download them off of this page if you don't want to wait to download them off of the server.
Note: As for a full map pack, not yet, when I get more then 300-400 maps on the server then I'll think about uploading a large map pack containing those maps, but not until I get that many since it's hard to upload something that big.
For map developers, you can use my site as a mirror for your map. Contact me to have your map added to the site. There's a few different ways to contact me. You can contact me through my forums, SC forums, Xfire ,or Steam.