P4P800-E Deluxe Raid questions

I have got a P4P800-E Deluxe board and 2 SATA drives. I am going to
hookup them up in a RAID 1 setup. Should I use the Promise raid
controller or should I use the built in INTEL raid controller for my
RAID 1 setup? What advantages are there either way?

One other question. What if my motherboard with on board RAID fails 3
years from now. Say I cannot get an exact replacement Board (out of
production), how would I recover my data on the RAID 1 hard drives?

If the raid was hooked up to a separate RAID PCI controller and the
motherboard went, I could just get any motherboard and transfer the RAID
card and Hard Drives to that motherboard and again use the existing data
on the hard dives. How would I handle this scenario with a motherboard
with build in RAID?

TIA

 

In 3 years from now there may be better technology available, hard drives
are becoming more reliable and optical storage (cd and dvd) cheaper. You
would be better advised to make regular backups of important data to cd
anyway as hard drives are mechanical and subject to shock and vibration.