01 - Hardware Needed

Server

Memory - 256 + (128 * users) MB == 2816 MB for 20 users

CPU - 2Ghz or 3Ghz for 20 users, for more users you may want to use SMP/MultiCore

Disk - Raid is suggested, possibly SCSI if you have larger network

Network - Generally 10/100 is good, if you have more clients gigabit is suggested.

Memory - 3GB

CPU - Dual Intel Xeons 2.4Ghz

Disk - 72GB Raid scsi

Network - 10/100 switch

Client

Memory - ?

CPU - 533Mhz or better

Disk - no disk!

Network - Generally 10/100 is good, if you have more clients gigabit is suggested

Memory - 512M

CPU - 800Mhz PIII

Disk - No Disk, boot via PXE

Network 10/100