Any suggestions of the hardware config for a single frontend WSS3 server? The database is on another server so it will just be running Sharepoint. Raid Config? RAM? Will start as Win2k3 64bit.
Raid Config 1. Raid1 OS 2. Raid2 ISS, Sharepoint, Website
Hard to say for memory and CPU, consider usage budget lifespan etc.
Your use case seems pretty minimal, so I would say you can get away with pretty minimal requirements.
Now, if you plan on implementing Search Server Express on top of WSS, I would say you need to up the ram to 8gb and put the search indexes out on some fast RAID 10.
Here is the documentation for WSS performance planning:
And here is the link for Search Server: