How would you set up these HD's?

I'm going to start putting my gaming rig together this weekend. I ended up getting (2) 1TB WD Blacks, and I'm installing Windows 7. Here's my questions:
- I used to always worry about fragging the drive installing and removing games all the time. Is that really a concern anymore?
- Mainly, I'm trying to figure out how to partition the drives for the best performance. Should I have a partition for the OS only? On for the swap file? If someone could give me some sizes, and what goes on them I'd really appreciate it.
- I don't know much about Raid setups. With these drives, should I read up and learn, or just hook them up normally
- Also, I'd like to Ghost the clean install when I'm done. Can I do that on DVD's or would it be better to just make a partition to put that image on?

Thanks for any help guys.