Indeed, ViewSonic makes some great 19" widescreen monitors for under $300 even with tax and shipping. I just bought one for my dad's birthday from NewEgg, and he's quite happy with it.
Basically, unless you're going for Apple style, you can't go wrong with ViewSonic--they make solid, quality LCDs at a reasonable price. I might look at Dell's ultra-cheap 24" that everybody loves, but in general it's either Apple or ViewSonic for me.