[CentOS] SATA RAID card recommendation?

I need a SATA RAID PCI card that works well with CentOS and is fully 
supported. Mandatory features:
- works with the drivers already in the kernel, no additional drivers
- can do RAID 0, 1 and 5
- hotswap
- allows to monitor the status of the array and of each individual drive 
via a script (ideally run from cron)
- works with very large SATA drives

Nice to have features but not mandatory:
- small battery to keep the array alive until the write buffers are 
flushed after a power loss

Anyone having positive experience with SATA RAID, please comment.

-- 
Florin Andrei

http://florin.myip.org/