Looking over the specs; The MSI is an inexpensive board, but I have heard good things about the NEO version.  However, I agree you are maxing out this board so no future upgrade.

 

The CPU is okay. The memory is a bit slow but you can add 4 gigs. At least go for the highest speed 400 mhz or above. 

 

The board has everything you need, but you will have to upgrade to a new video card, a new ATI Radeon X1600 or higher should do.  Make sure you get one of the recommended video cards, even if you have to go somewhere else to buy it. 

You should be able to run Win XP x86 or x64.  I do no know about Vista, you would have to check the mobo guide to determine if this board is ACPI compliante with Vista, or it won't run Vista.

 

Have them so a pretest, you do not want a doa.

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