I agree I wouldn't be quite ready for SSD and RAID on a server. But, on a WIN7, although you may not always need it, it is much less likely to crash. An OCZ Vertex 2 is rather inexpensive.
Sorry about the x64. I was referring to SBS.
Ha, I was confused about the SSD because that was in the context of a different post. Putting SSDs in RAID means you can't use TRIM which reduces the longevity of the drive.
Yea, I think you're right about there not being a 64 bit SBS 2003.