hey gog, downloaded your downloader the other day, and have been using it to download everything i just purchased.
and have encountered a bug with the kings quest and kings bounty games, they come up with an error, (EI41): bad signature

but other than that, its working great

altho i do have a few sugestions.
-a second version that comes in a self extracting installer that puts an icon in the start menu.
-a way to set the default gog install directory so when you run installers they default to the preset directory.
-resizeable window so you can view more of the list.
-ability to view your "My account" from within the downloader with the ability to see weather your game is not yet downloaded, downloaded, installed and/or uninstalled.
-a way to start downloading, lunch and uninstall the games from the downloader, leaving the ability to delete the original install files and change the directory of the original install files per game so large game collections can be spread over multiple disks.
-ability to throttle and schedule downloads and even schedule the throttle.
-ability to download the aditional content from within the downloader.
-allow downloading while chunks are being combined

hope you guys take all this on board :)