At my studio I am currently running a first gen MP 2.66 quad with 6.5g ram and wondering how much difference I would notice changing for a new 2.93 quad or 2.26 octo. Used mainly for graphic design so Photoshop, Quark, Illustrator etc. If the difference isn't that great would I better to spend some money on more ram and a bigger faster HD for my existing MP? Alternatively I could purchase a 2009 MP and pass my MP onto one of our designers who is running a G5 2.5 dual. Would he notice much of a performance improvement? Just trying to work out the most cost effective option in these tight times.