Step 1: Make Sure You Have All the Necessary Things
Step 2: Choosing a Display
Step 3: Setting It All Up
Now the setup. If you don't see a picture on your display do not panic! Your cable box is probably trying to display a resolution which your monitor can not display. Find out how to enter HD setup mode, or change the maximum resolution (for Explorer cable boxes turn off the box and hold guide and info at the same time). After you find the instructions, Follow the them to change the maximum resolution to the resolution of your monitor (most likely 720p). Also, if the cable box says your monitor is not HDCP compliant, either you bought the wrong kind of monitor, or it is like my setup which flashes that message everytime I turn on the monitor, but only for half a second or so.
Step 4: Other Things
Step 5: Downsides and Conclusion
Also, you can not turn the TV on and off with a remote unless your cable box features a built in plug (or you buy a remote control surge protector, I think Belkin makes one). Everything else (volume, channel, etc) is on the remote which controls my cable box.
So, if you want an LCD TV without the price, and can deal with some minor inconveniences, this is a great option but if you want a lot of inputs, 1080p and a huge 50" TV this is probably not for you.
Check me out on flickr if you liked the project!