There were some nice late model Nokia 21" monitors for sale locally for $25 a pop but I don't realy have a spot to keep one so I stick with the 19" Sony 420gs in my room. I do have a 19" viewable (looks like a 21") Supermac monitor in the basement and I had to resort to sticking it in an entertainment cabinet meant for a TV. They are just too big, deep, and heavy for most desks.

The pop out port is realy usefull, you just need a male to male VGA cable.

All of the Sony monitors I have support SOG and came with mac video adapters, they also support mac only modes and SUN ones as well. If I see any more Sony monitors on freecycle or thrifts I will snag them and toss one of the other brands.