Both companies have good video cards out at the moment, depending what you want to spend. ATI put out drivers recently that have greatly improved the performance of their new HD line of cards, so make sure to look for recent benchmarks.
Apparently nVidia are releasing a new chip around November, so if you can hold off until then you should get some good value on the current generation.
You need an ATXv2 power supply for those little PCI-E power plugs. Most cards come with adapters for the 4-pin molex plugs, but you're better off getting a solid power supply with the actual connectors on it.
Apparently nVidia are releasing a new chip around November, so if you can hold off until then you should get some good value on the current generation.
You need an ATXv2 power supply for those little PCI-E power plugs. Most cards come with adapters for the 4-pin molex plugs, but you're better off getting a solid power supply with the actual connectors on it.