This simple and convenient program allows downloading from most host sites without waiting between downloads and slot limitation. You can basically start all your downloads and go to sleep - USD will manage them by itself.
It's very easy to install
1. You can download it from MegaUpload here
or go to this site and dl directly. It's in Russian, scroll down to skip the ads, you'll be needing a post by Nep. Click the following link:
link # 1 which looks like this : USDownloader + все языки (без плагов) (link2, link3, link4)
2. Unrar the file.
3. Run file USDownloader.exe
4. In the opened window click the big green plus button
5. Copy and paste the link from host site to Links: field, click OK, you can specify files destination in Save to:
6. Paste as many links as you want, the downloads will start one after another as soon as the previous is done.
Enjoy
It worked perfectly for me. The download got stuck a couple times, and it gave me an html file returning error, but got over it eventually and finished all the download.
If it's still stuck, try this:
Options --> Misc --> Log file details=Maximum
Don't forget to delete USDownloader.log and all the *.html files in USDownloader folder.
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Updated version here