Thinking of getting a stronger computer from dell, to deal better with zbrush and lightwave. Dell 9100 with 64 bit with 8gb of ram, as I only have 3 now and it really slows things down.
What I want to know is the difference between 32 and 64 bit, will I be able to use older software, I know I can use Light wave and possibly zbrush. What makes 64 bit better?