Graphics card for editing

[MJoshi]

I am considering the following graphics cards to install in a new i7 machine I will be building:

GeForce GT9800 1GB (Green/Eco)
ATI HD 5770 1GB
GeForce GT 240 1GB

The computer will be used for video/audio editing.

I have read that the GTS 450 is now out in the US. Is it worth waiting until this is released in the UK?

Thanks.

 

[Lonyo]

Considering it should be out tomorrow and is already listed on some websites, and I think reviews are supposed to come out tomorrow as well, it makes sense to wait and see how it performs.