I am planning few months down the road, to make a jump from Series 3 to Premiere XL4 with TiVo Stream and IP extenders (once the latter are released). But I like my self-made eSATA storage expander (Vantec). However, I can't find anyone who would state if any other drives, outside of the WD AVR 1TB, are even recognizable.
Taking things a step further, is there any way to hook up iSCSI?