I have a 300W PSU and I am going to buy a 8500GT graphics card.

I know someone who has same spec computer I do and is running a generic stock 8500GT with DDR2. Should I buy the 8500GT with the gDDR3 model? Do I need a higher power PSU?

 
In reading reviews, particularly on newegg.com, some people said it had no problem while others have said it gets hot quickly and that the fan isn't too good. With my AMD64 computer that has the cool'n' quiet technology, would that be a problem?

The gDDR3 model is overclocked versions compared to the stock. I play Age of Empires 3 now and then. So 8500GT would be fine, unless someone can recommend to me a better card that doesn't require me to buy a new PSU for now since I don't need a higher powered graphics card.

A larger power supply is always a+of course larger power supply is a plus. But I have no need of it right now. An 8500GT will suit me just fine; it's REPLACING the old crappy ATI x200 Integrated graphics card that I currently have.

So is 8500GT DDR3's power supply requirements same as generic 8500GT? If that is the CASE, I'll just buy the 8500GT with DDR3, given that heat ISSUES won't be a problem.Yes on the generic, go for it. You can always purchace a larger power supply and when you build a PC you can use it in the new casewell, you should be able to run with 300w, but IVE never tried it so it may burn the power supply out quickly, my advice would be to throw a 500-600w power supply in there, it doubles your wattage, and it runs from about $50-$150 depending on the quality of the power supply.

ps an 8500 can run almost any game out there, the more intense games would need lower graphics settings. but you should be set with that.I have a HiPro 300W PSU with 12V rail 19A. It will run the 8500GT generic. I guess I'll not get worry about 8500 DDR3 model for PSU I got for now.

Another question, HD 3650  I think also requires at least 300W PSU so I am good on that point. Now question is.... should I get HD 3650 or 8500GT? Similar cards/price except HD3650 has more stream processors. Not heavy gamer so it's ok for games to be at low resolution and higher otherwise.

And how's ATI quality these days for stability and drivers for PC systems?