Minimum spec for file server?

[trustory]

I was thinking of picking up a G4 PowerMac and putting a few drives in there to use as a file server but was wondering what sort of spec I will need to be able stream big video files from it. Would an old PowerMac have any problem sending high bit rate stuff across a network?
Cheers in advance

Edit: and what is the oldest PowerMac that doesn't have the 128gb HDD limit on the motherboard?
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MacBook 1.83Ghz C2D, 2GB Ram, 160GB 7200rpm HDD, OS X 10.6.5
Harman Kardon Soundsticks II
Elgato EyeTV
iPhone 4 Black 16GB

[Texark]

[Ryder]

depends on what server, i can run a server on my g4 sawtooth 500mhz no problem. Theres alot of different servers.
Here check this one out, google this server.
Mac OS X Server 1.2v3
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Ryder M.
Mac Mini 2.0 2cd (2009) 32'' monitor
Mac Mini G4 1.42ghz-traded for Ibook
Ibook G4 1.33ghz
2 - G4 PowerMac Sawtooth's, 20'' monitors
Blue & White G3, & old Crt
Ipod Touch
4 500gb external drives

[macmanmacman]

Also if you decide to go to leopard server on a g4 look into leopard assist it will help you install leopard on any g4 computer without needed to mod your disk.

look for leopard assist on google.