Edit: So I found a 22" Lacie Electron Blue III Monitor for $50 locally. Think it is worth the upgrade for another inch? Must be a better monitor than the Sony I am guessing too.
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So I got my hands on a free 24" Sony trinitron monitor tonight. Currently I have a 20" Sony VGA monitor in my arcade cab to hook up my Dreamcast to, as you can see here:

I have the room for the 24" TV if I decase it. But of course I will be trading the high resolution of the VGA monitor.
What would you do?