Hmmm... Hello again :O)

I'm trying to build an ftp server. Tried several software based, But non of them work well (On some user can't access computer, And on others user can't download files).
Anyway - Thought about buying this router which costs around 60$,And which supposed to have a built in ftp feature through usb connection :

http://www.edimax.com/images/Image/d...BR-6215SRg.pdf

Has anyone of you had good experiences with ftp behind firewalls, Or with this specific product ?

I already have an 500gb maxtor external drive, So it will be cheaper to buy this router than buying another HD with NAS enclosure.