High res = larger panel. You will not find a panel that display's 1600 x 1200 on a 19"
The max you will get on a 19" is 1280 x 1024 of WS 1440 x 800.
If you want a really good monitor for your PC then get the Acer 19" Widescreen or the Hanns WS. Both res @ 1440 x 800 the only difference being that the Hanns as DVI and VGA. I have just bought 2 Hanns WS for presents. The recipients are more than pleased with the performance, especially as they can run both there PC's and Xbox's using this monitor.
There cheap too.. if you want higher res... look at the 20" market. There are a few available at that budget!!!