Alright, I found for direct downloads, start downloader the best one around I have used so far for it's simplicity and performance. I started using it after a review on clickonline on bbc, like 2-3 years back. Only one problem with it is that it does not support downloads from sites requiring authentication like rapidshare.
Second good is get right for it hassle free working.
DAP is giving me the best speed so far for authenticated downloads, but it's not hassle free and one needs to keep a watch on it.
Flash get and orbit: I didn't use them much but the speed was not really good but the management was good.
Please share more downloaders