A standard 19" monitor (1280 X 1024) actually has more screen area that a 19" widescreen (1440 X 900). The display of the standard monitor is actually higher, so it's probably better for photo editing. With a widescreen 19", you can't display an 8X10" photo at full size in the verticle or "portrait" orientation).
I understand that budgets are what they are but, I wasn't happy with either of the 2 19" widescreens I had, (sold one, returned one), and I'd suggest trying to hold out for a 22" panel. The price difference isn't that great nowadays, and you'd be much, much, happier with that size display.