The 250 is both analogue and digital so your analogue will be that resolution while digital will be the full 1050. Both can be played full screen on larger resolution screens regardless.
Thanks. Plus do you think an imac screen is large enough, in terms of width and height to replace a tv? I'm thinking about setting it up in my appartment as my tv, with my ichat and eyetv using 50% of the screen each.
Unless your apartment is about 100 sq feet and you sit 2 feet from the screen, a 24" iMac is not big enough that 1/2 the screen can be used for your only TV...my opinion....
So should I go dual screen and have 1 screen for surfing and one for watching things?