hot swappable SATA controllers for Linux

[Lance Boomerang]

I am looking to build out a fairly dense setup with nodes having 8 or so 
SATA drive slots for about 6 TB per node.
Initially plan to have 6 of these nodes.   Obviously at this level of 
density I  need to be able to hot swap a drive if one goes bad.  I was 
wondering what folks have seen in terms of real work use of various SATA 
controllers out there.

I have used LSI.
3Ware seems popular also.
Even seen Rosewill silicon.

Love thoughts on what mileage people are getting on SATA controllers.

Thanks!