Sorry, my assumption was that you can boot from SATA. Thus, it would make no difference. Doesn't it work, then?
It's just that I've seen SATA CF card adaptors that doesn't boot from it, just reads it. And in general, IDE CF card adaptors that doesn't say it's bootable, isn't.
Driver's aren't too huge an issue. nVidia have complete drivers for their chipsets and graphics card, ATi do too I think, Broadcom have drivers for my Bluetooth adapter, d0gbert makes awesome drivers for my Cmedia soundcard with SPDIF out and almost all devices Windows has driver for out of the box are supported, such as standard USB gamepads and USB drives. Even my old Conexant PCI 56k modem is supported out of the box. I think my MS webcam has drivers for it too. So driver support is actually pretty good.