I have just bought a new (well 4 months old MP) 2.4 dual quad and it comes with the standard 6 gig (6 x 1 ) - It will primarily be running Ableton 8 which can only access 4 gig at this current time. Is it worth upgrading ? I started to read the OWC guide which seems to suggest that 12 gig is the one to go for but for me will it really make much real real world difference ? If I did go to this would I be best off getting 4 x 2 gig sticks and removing 2 of my 1 gig sticks ? Anyone buy memory from OWC from the UK ? Did you pay much tax/import duty on top ?