The HD, where my share is stored at is formatted in NTFS, so I set the folder-permissions to simply compress all files, which I store in it. ;-)
My server is only a Pentium III (3) 733/766MHz with 100MBit/s-LAN and it serves enough data, to simultaniusly play from 2 PS2s, so that fits well for me, not sure if it will help you.
PS2 V7/DMS3 V2 (FW:2.4b7); Seagate Baracuda 200GB
PS2 V7/CC1.0 (FW:34 hacked v2 BM:2.1.6); Maxtor DiamondMAX9 PLUS 160GB
PS2 SCPH-30004R; NoMod+NoLaser
3xSony MC 8MB
MAX/Datel 16MB with Boot-CD
Custom FMCB 1.8b+ Beta-Build, my AIO 0.5, Sony&xRhino-Linux