QUOTE (WolfsPride @ Oct 21 2009, 07:49 AM)

This also depends greatly on your resources. when I was Tech Seller I would buy it Like this
4.5
10
10
5
10
10
.5
That was the cheapest way for me
Yes, this way's cheapest. Costs about 816K, whereas the other mentioned methods around...866K, if memory serves, without any modifiers from gold, microchips, or universities.