swishk

I can get a hold of Sun Fire X4150 x64 Server with 2 quad core Intel Xeon X5460 processors - 3.16ghz, 6mb and 16gb of ram for about $1800 to $2000AU (that would be $1600 - $1800 American) Now would I be completely stupid with the idea to running this as a work station? I would be adding a graphics card and installing Windows 7 64bit. Is there any major flaws in this idea? Im i completely missing a fundamental component/piece of information? Is this possible? By this stage I'm sure you have worked out that this would be my first computer build. I have a freind asuring me that its posiable and he does have a few build under his belt just noe with servers. All i know is that this would be cheaper than build a work station with the same components... Please inform me of any need to no points. and you thoughts on if this is a good idea or not?