Dell 2850 use 32 or 64 bit?

[Wojciech Puchar]

> be used as a webserver, e-mail server. and a db server (both PostgresQL and 
> My SQL  Beyond the breaking of the 4 Gig RAM barrier, is there any compelling 
> reason to use a 32 bit i386 or a 64 bit AMD OS?
the same as using 32-bit software (not 16-bit) on 32-bit CPU.