Age old question - how much RAM should i buy?

[whistler222]

I just ordered my mac pro! with nividia.. with ADC discount.. about 2400 bucks..

ok.. ram..
i'm running adobe lightroom, photoshop, iphoto, iweb, office 2008, and web

should i buy 4 gb (2x2) and make it 2,2/1,1 = 6 total
or buy 8gb (4x2), and make it 2,2,1,1/2,2 = 10 total
or buy 8gb (4x2), sell the 2X1 stock, and make it 2,2/2,2 = 8 total?

do i need 10/8? or is 6 sufficient? and by sufficient i mean, my computer will not even maximize that amount b/c i don't ever do video or music editing?

Thanks!!

 

[TheThirdMan]

or buy 8gb (4x2), sell the 2X1 stock, and make it 2,2/2,2 = 8 total?

That one.

 

[whistler222]

so for photoshop/lightroom, 6gb is not enough?
10 is not overkill? okie

 

[aaronw1986]

Age old answer: as much as you can