..ill suggest if you can someohow manage, to buy decent laptop with more-less modern features and performance..I know it may be outside of budget, but for long term, you can loose invested money, having in mind that you looking for Bmax + TV3D to run with..if you can squeeze some juice to get decent one it will be ok, rather than invest again in to same thing because low end you looking for will be obsolete soon, regarding fact that you want it for 3D too..thats just suggestion..