My question is, do you have a scandoubler? If not, those games aren't going to look like much of anything other than a VHOLD problem. ;-)
I have my miggy hooked to a 21" Viewsonic monitor, though (shared via Belkin switch) and with the scandoubler, games look large, and a bit blocky, but still pretty nice, so I think you should be ok, size-wise...
