I have 2 Raid 0's set up each using 2 1TB F3's.
I may not always keep it this way. Down the road I may get a Raid card. Even though I'm not over the 2TB limit, should I set my drives for GPT or stay with MBR?
My MOBO is the GA-X58A-UD3R. I don't remember seeing anything about a EFI bios. Is that a requirement? Microsoft says it's not a requirement. True?
Are there any issues I should be aware of?
As long as you don't need to boot from the raid, I would always use GPT.
That way you can expand your raid with more disks, if your controller allows it.