multi tabling monitor suggestions

I am thinking of making the move from 2 tabling to 4 tabling. I have a Sony lcd tv that I am currently using as my monitor, but the computer screen area spills outside of my viewing area. This does not allow me to play 4 tables without overlapping.

I am wondering if anyone knows how to shrink this down or if there is a different video card (using GeForce FX 5900SE) that will work better with my tv as a monitor.

I am not opposed to getting a new set up either. So, what are some of you using? CPU, RAM, monitor, etc.?