Help with picking a download manager.

Hey guys,
I am looking for a good download manager/accelerator?
First I would like to ask do you recommend a download manager in the first place. Please provide reasons
Second if you recommend a download manager what is the one you recommend?
IDM
DAP
Etc.
Please note that ideally I want a download manager that:
Has a clean install/uninstall (does not ruin system on install, and does not leaf leftovers on uninstall)
Can be turned on/off on the fly i.e without restart, I only use it for specific downloads
Compatible with media fire
Does not destroy IE

Please note that I have had previous experience with IDM and I love it but I am reluctant to install it on the new system because of point 1,2,3, but if it is the best then I have no choice then do I ;P

My specs:
Windows 7 Ultimate x64
Running the one and only IE9
Thanks in advance

Arc said:

IDM is free from points of hazards you have pointed out , cause ....

1. uninstall it with revo uninstaller ...there will be no leftovers .
2. Right cilck on the notification area icon and exit ... it is stopped .
3. When you are on you tube or any other video page, it automatically adds a download button there .

IDM is the best, IMO .

Thanks for the reply,
But once i i uninstalled it, then re installe dit and it saved all my prefs and registaration data etc.. (using normal uninstall) that relates to the next topic i was going to post (do you reccomend an uninstaller)

Maybee that was an old version which i used but anyway i will give it a try

LOL, thanks Guys :)