going eyefinity

[Deminion]

Looking to go eyefinity on my setup, got 3 monitors. rolling this GPU http://www.xfxforce.com/en-us/products/all-previous-gpus/amd-radeon-hd-7870-double-dissipation-edition-fx-787a-cdfc .
Currently only going with 2 monitors, both supplied via DVI, tried to use the hdmi, but it had a tendency to cut signal once in a while.
Figure i'll need to use the pair of mini-display ports, but then i would need a converter, for the monitors, as they are VGA/DVI/HDMI.
enlighten me please.