I've got an Exchange 2003 server that is over 5 years old and I need to replace the hardware.
I currently have 125 mailboxes and a 40GB store. We do design & engineering work, so there is lots of big files attached to mail that gets saved for long periods--so the store grows quickly.
We've standardized on HP servers. So with my needs, what would you recommended for hardware of a new server? I guess I'm wondering what is most important in an Exchange server - processing power, tons of RAM, etc? Where is my money best spent?