jDownloader is an open source download manager, written in Java, which allows the download of files and split files from one-click hosting sites such as Rapidshare and Megaupload automatically. The user specified download links are split into packages to enable individual pausing and continuing of downloads.
you can find some DOWNLOAD MANAGER, like "FLASHGET" "DAP" "FREEDOWNLOADMANAGER" and a lot of programs for DIRECT DOWNLOADS!!..
im really fine with Jdownloader, i have no problems with it... i dunno why u want to get a better download manager?'....
maybe u arent downloading AT FULL SPEED.... it might be for WIRELESS, when i download in my laptop i download at 50Kb,
when im in my desktop pc, i download at 172Kb..... if you dont get enought speed for your downloads, i recommend you that u connect your cable RJ45