Hi Jeff,
and happy new Year.
i woulnd't reccomend overclocking the 780s to much. at least not on Water. On air i thinkg you will hit a Thermal limit before you can reach 1200W
as for the Stretch. A certain Amount is "Normal" it's an anti Fisheye effect. because if you Focus the middle monitor your side monitors will show what you would normaly see. That sucks for Flight sims, but is good for fast paced shooters.
You can check out the
WSGF Gallery to see what the effect looks like on other peoples Monitors/Games.
Or Skid is making a Lot of Videos in Eyefinity. You could check out his
Youtube Channel. (but be aware that the resolution is 5040x1050 and not 5760x1080 so you will have black bars on the side if you maximize Youtube.)
P.S WTH is a KFAPWI