Dear Victor 1, e-mule is OK, but you can try lphant (
http://www.lphant.com/ ) it is also free, and you can down/up load in the e-mule/e-donkey web as well in the bitorrent web at the same time. The only bad thing with lphant is that an adware is installed to present advertisements in your computer. Wether the adware page as the lphant page assure this is a safe adware. The lphant developer (called JUANJO) says the reason for this is to get monetary support to mantain lphant as a free software. Apart of that I think is the best sharing agent