As I don't tend to download really large files on the AA1 (Linpus), I tend to use a lightweight command line tool, namely the Aria2 download manager.
It handles everything I need. The supported protocols are HTTP(S), FTP, BitTorrent (DHT, PEX, MSE/PE), and Metalink.
It also uses very little memory the Aria2 site says :
"The physical memory usage is typically 3MB(normal HTTP/FTP downloads) to 6MB(BitTorrent downloads). CPU usage in BitTorrent with download speed of 1500KB/sec is around 6%."
It is available in the package manager.
It also has a number of GUIs available the best of which I think is Aria2fe which is just a Qt front end it's available here:
http://sourceforge.net/projects/aria2fe/
The main downsides are the lack of a scheduler although throttling is possible if you set it up first, it also lacks a built in IP filter for Blocklists
If you need those I suggest Ktorrent or Deluge.
Finally If all you need is a simple easy to use client why not just install the Opera browser as it has got email and bit torrent built in, and for my money it is the still the best browser available on any platform.