With a DSLR and video wouldn't you go with a matt screen rather than split? If there was a split screen it would be best for stills.
I will use live view for manual focusing at times but it is limited by the crappy 240k pixels I live with.
I don't think the 5DII has any focusing abilities except for blazing hot sun shots. ;-)
Doesn't it go Nikon for bodies and Canon for glass?
2000 740i-Annalisa and 2008 335i-Weebl. Weebl may wobble but has DTC
2012 X5d in Sparkling Bronze ( The Ultimate Cat Carrying Machine)