OS : Windows 7 Ultimate 32-bit
Processor : Intel(R) Core(TM)2 Duo CPU ~2.7GHz
Memory: 2048MB RAM
I am only realy interested in running D3 and my price range is ~100$
if you need more information to give me an answer ask, im not great with computers.
I got no idea what prices are in your area so that's hard to tell. Yet the worst thing to buy is a gfx card that can't handle rendering requests. For D3 i won't go for anything less than a nVidia GTX 260 and I've seen several on ebay.com for less then $100.
Venture to the Realms Beyond to get off the beaten path.