Jun,

With servers, the "golden rule" is buy as much as you can afford.

The following components are the most important, in descending order:

Storage subsystem - SCSI Raid Array. You will want separate arrays for the Operating System and the SQL Data, preferably connected to separate RAID adapters.
RAM - as much as the motherboard can hold, minimum of 1GB.
Network card - if you have a gigabit switch, try for a gigabit card.
CPU - go for L2 cache over raw speed if you have to.

>Hi,
>
>We are going to purchase SQL Server 2000 with one CPU license.
>I need some advice on what the server box should be, we are going to purchase a new one.
>
>Thanks in advance!
>
>Jun