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32 bit windows only recognizes up to 4gbs of ram no higher, and all you would need is 4 gbs of ram 8 gbs you would never use.

actually it can only utilize 3 gigs of ram... it will detect and tell you that you have 4 gigs installed but its just to ease your mind... only 3 gigs can be used.
 
FWIW, I went ahead and sprung for eight gigs, and it's very nice if you spend your day running Photoshop, Illustrator, and InDesign concurrently (I assume the same holds true for video/audio/etc. stuff too, or maybe multiple VMs). It is pretty much overkill if you're not doing that sort of stuff.
 
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