DVI to VGA  or S Video when connecting to a Samsung LN46a950 LCD TV

I have a first generation intel Mac mini. I just bought a Samsung LCD TV. I currently have my computer hooked up to the TV through the S-video jack via an adaptor. I have a optical audio out going to my receiver. Will I get a better picture if I get a DVI to VGA cable or does my s-video connection give me as good as I can get?
Thanks loads for your help.

Yes, you will get a better quality picture if you connect via VGA instead of S-video. While VGA isn't as good as it can get (it's analog, so a DVI or HDMI connection would be better if the TV has it), it's capable of delivering a much more crisp and color saturated image at higher resolutions than s-video.

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