Here is a list of download managers I've seen on some "best" lists. I also do not use DL managers either but I know these get used quite a bit.
Name: LeechGet 2006
Version: 2.1
Date: 5/31/2007
Cost: FREE (personal use only)
Compatibility: Windows 95/98/NT/2000/ME/XP/Vista
Source:
http://www.leechget.net/en/Name: Fresh Download
Version: 8.06
Date: 7/25/2008
Cost: FREE
Compatibility: Windows 95/98/NT/2000/ME/XP
Source:
http://www.freshdevice.com/Alternate Download:
SoftPediaName: FlashGet
Version: 1.9.6
Date: 9/25/2007
Cost: FREE
Compatibility: ?
Source:
http://www.flashget.com/en/download.htmAlternate Download:
SoftPediaName: Download Express
Version: 1.9 Build 337
Date: 11/17/2005
Cost: FREE (personal use only)
Requirements: Windows 95/98/NT/2000/ME/XP/2003
Compatibility: FireFox 1.x, Mozilla 1.x, Netscape 8.x, Internet Explorer
Source:
http://www.metaproducts.com/mp/mpProducts_Detail.asp?id=18