I've searched and can't find a conclusive answer so I thought I'd ask. I am well aware of the SATA1 limitations in the PMG5s that prevents us from using SATA3 SSDs (SATA2 OK, if you can find them), and I believe I have seen that the SATA3 HDD spinners are OK as long as they have a SATA1 jumper on them you can force. So are the hybrid SSHDs OK to use in G5s as boot drives? I want the speed of the SSD but the capacity of the spinner HDD. If so, does anyone have any recommendations. Are they worth it? I can get 2TB for $100 from amazon and I haven't' price-shopped anywhere else yet.