Trouble with Lacie is only a 2 port card…
Firmtek do an excellent 2 drive enclosure box. they do a bundle with a 4 port card. That gets you about 230MB/s just enough for HDTV
For external, I’d get 4 dual boxes from them , and an 8 port card from Sonnet. Make sure you get good cables from them as well.
For internal, I’d look at Max Connect (https://www.maxupgrades.com/istore/index.cfm?fuseaction=category.display&category_id=306)
which helps fit 7 drives in a G5 and offers a cheaper plastic version, cheapest SATA expansion I have found.
, and then if you don’t have the Nvidia monster card, the G5Jam cn fit another two behind PCI cards so mac of SATA boxerama and then what the heck get an external card as well and stick another 8 on and get over 500 MBs!!
(Mind you, am having troubles with bus speeds to my PCI-X card…)