I run 256MB RAM in my home PC (400MHz Pentium II) which helps me grind through big Lotus Notes apps. My 733MHz PIII workstation at the office runs 512MB RAM and Ultra LVD SCSI hard disk drives to grind through even larger Notes DB's. Both run Windows2000Pro and go very well. Having said that until I upgraded the PII-400 to W2kP it'd blow the Workstation away in just about every aspect of day to dat operations, apart from large file read/writes...! The benefits of a light(er) weight OS...!
Aq