vista raid 0 asus p4c800 deluxe

Hi,
I'm keen to give Vista a try (dual booting with XP) but was just looking for a few answers.
1) To dual boot can I install Vista to a clean partition when already running XP and have a boot menu?
2) My mobo supports RAID, and I have a RAID 0 set up just now for XP. Will Vista automatically detect the Promise 378 and maintain the RAID array I have already? Asus have no Vista drivers as far as i can see.
(I will of course make a backup of all important data before doing anything, but was going to be reinstalling XP from scratch anyway soon)
Look forward to some help.
Thanks
Colin