6 months isn't actually ATI's "cycle" you know. But I think the Radeon 2 will come out mid 3rd quarter of this year? If they don't delay it. I think the Radeon came out roughly July?
Not sure about the SE though, some people were saying it's fake, but I doubt it's worth it to get that, since overclocking a Radeon doesn't give you THAT much more performance.