[Samba] Hardware for faster Samba server

[lrnobs]

I have Samba running on FreeBSD as a dedicated file server, servicing
Windows pcs running a database application, on a Pentium 4 2GHZ 512MB RAM,
with a SCSI drive.  The server's only job is to run Samba.

The boss is asking what kind of new box we could get.  Looking in the price
range of 1-5K.

Should we get an Intel Xeon, or go to a different chip and maybe run
OpenBSD.

Will dual processors do me any good with Samba as the only significant
service running?

Thank you for any suggestions.

Thanks,

Larry Nobs