Also see post:
http://chaldee1.gotadsl.co.uk/~richa...=9421#post9421
and
http://chaldee1.gotadsl.co.uk/~richa...ead.php?t=1875
Try an Nvidia GT120 Graphics card until apple have sorted out the drivers
Also suggest a USB card (sonnet Allegro) with an internal port for dongle security and an SSD for content
Upgrade cost is £1000.00 (list) from V3 to V4 (Pro-Pro, DV-DV etc...)
Let me know if you need any further assistance
Simon