Three answers for this topic: Yes, Yes and Yes.
In my previous post with regard to Xbox DVD drives - I have a soft modded 80gb damaged DVD Xbox I use as my arcade cab xbox (nearly full), I also have a chipped Xbox with some games already on it (all original honest..) and another two soft modded xboxes I use for XBMC around the house all linked up.
The latest and greatest XBMC is a godsend for my 80gb as I cannot load any games onto it, so I FTP from my PC using Qwix and Avalaunch and copy over the games from the PC HDD. So Yes you can FTP into a disk less Xbox that way making sure you go on a small holiday to Brazil while the transfers complete.

The other way is to use the latest cool XBMC (I have the 360 skin) and hookup a chipped Xbox to the network. XBMC links up the 80gb and the chipped together and you can transfer that way. Much faster than FTP even though the process is similar.
So I still have the 80gb and the chipped xbox cannot read a Starfighter disc. No problem. Use either softmod Xbox with stock drives and DVDtoXbox and steam it to my Arcade Server drive via SMB, then to the 80gb via FTP.
I'm sure there are other ways you can do it via the network, but I had a real problem getting any games into a seized DVD drive Xbox, and these solutions all prevailed. I also have my emulators using SMB but it is flaky as hell and I would just load them on DVD.
Hope this helps.