I could tell you but I'd have to kill you.
Quote: Originally Posted by Spike Milligan
He wants to die rich? Then give him this sack of gold and strangle him!
But others have already posted the the road to success.
Research - Look at the tasks which you want the device to do.
Design - a product to do them.
Repeat until everyone is impressed weeks after they saw it.
Build it and sell it.
Repeat until you're bored/rich/retired.
Simply buying the most powerful expensive equipment totally unsuited to the tasks in hand is a road to failure in my opinion.