Help Me Choose: Storage controllers

The following chart breaks down the different storage controller options for Dell Precision tower workstations
 Tower 5810, Tower 7810Tower 7910Rack 7910
Integrated controllerIntel AHCI 6Gb/s SATA controller with six ports (@6Gb/s, two reserved for optical drives) supports software RAID 0, 1, 5, 10LSI 3008 SATA/SAS 6Gb/s/12Gb/s controller with software based RAID 0, 1, 10Two integrated Intel AHCI 6Gb/s SATA controllers with four ports each
for a total of eight SATA hard drives, plus one port for an optical drives.
Software RAID 0, 1, 5, 10 is supported via Intel RSTe. Limited to 4 drives at launch.
Optional add-in controllerMegaRAID® SAS 9341-8i 12Gb/s PCIe SATA/SAS controller with software RAID 0, 1,5,10PERC 9 H330 12Gb/s SATA/SAS controller supports up to eight hard drives
and software RAID 0,1,5,10 (uses Mini-PERC slot on motherboard)
Optional add-in controller MegaRAID® SAS 9361-8i 12Gb/s PCIe SATA/SAS Hardware RAID controller (1GB cache) RAID 0,1,5,10PERC 9 H730P 12Gb/s SATA/SAS RAID controller supports up to eight hard drives and
hardware RAID 0,1,5,10 with 1GB cache (uses Mini-PERC slot on motherboard)