SATA query

I currently have a socket 754 Asus K8N mobo with an athlon 64 CPU. I run two IDE hard drives but wish to trash one and replace it with a SATA HD.
How easy is this in terms of installation?

Install Hardware
Format
Install OS
Run additional IDE as slave

How do I know that my mobo is sata ready? Are there any addition steps?

2) Second part:

Is it possible to run the drives on a RAID 0 setup? if so how?