LSI Logic MegaRAID SATA 150-4

Hi, 

since my fileservers bootdisk died this night, I'm toying with the idea to 
move over to a SATA-RAID setup. Are there any known problems with LSI Logic 
MegaRAID SATA 150-4 and FreeBSD 6.0 around? Is it easy to attach a 4th disk 
later and enlarge the 3disk RAID-5 setup I plan to start with? Is there a 
FreeBSD tool around for managing the controler like mlxcontrol for Mylex 
controlers? If not, can I manage it through it's BIOS interface or am I 
stuck to MS-DOS or worse MS-Windows? Anything else I should know about this 
controller before I'm gioing to buy it? 

Greetings Oliver