I wanna play my ps3 through a HD monitor without having to buy a new tv. I recently built a new computer and the LCD monitor I bought only has 1 DVI and no speakers and the return policy has a restocking fee so I can't return it for a tv that I can hook up to my pc. Is there a good pci express tv tuner out there with HDMI that has no lag issues when I hook up my ps3 to its HDMI port to get a good gaming experience with good picture and sound through my speakers?
There are those, but they are expensive and have input lag. Why don't you just buy HDMI -> DVI adapter? Use that to connect the monitor, and use the composite connections for audio.
I only have 1 DVI port on the monitor, so I would have to take the plug out every time I wanted to play ps3 or I can buy some sort of splitter but that will make the signal quality not as good prob about the same quality as the tv tuner lag, right???
The output from a PS3 is always HDCP encrypted so your monitor will need to support it (most do). There will always be input lag from a video capture card. Some video capture cards allow you to view HDCP encrypted content but you cannot record it.
A DVI splitter is not what you want; a DVI switch is what you want. You would still need a HDMI to DVI for the PS3. You will also need a switch for your audio.
You might want to rethink that restocking fee as its cheaper then the switches and the HDMI to DVI cable.
Why would I wanna buy a DVI switch when a DVI splitter is less than $10 and a DVI switch is closer to $30?
A splitter lets you plug two displays to a single video source while a switch lets you plug two video sources to a display's port so you can switch sources without messing with cables when your display does not have enough built-in inputs to plug everything directly to it.
A good splitter would have buffer chips at the split to maintain signal integrity across outputs which makes them a one-way affair. A passive DVI/HDMI splitter would be a gamble since the impedance discontinuity at the split and ~55% weaker signal each way are likely to cause transmission errors. The passive splitter might work at lower resolutions and refresh rates but I doubt these would still work at 1080p60.