Figured I post here on my experience so far. Positives went with the 768 MB for $175 (Still couldn't beat that deal overall), and tiger direct had it at my house within 2 days. Now that they are working overall pretty good, I still note a minor hitch every once and while like (10 1 second pauses/frame drops in 30 minutes on bad company), but that's probably from just being maxed graphics and lots of explosives going around. Last major positive seems to be good on a 650 power supply, haven't noticed any signs of failing like instability, etc.
Negatives, oh where do I start, when I first got through the cable rerouting and installing, had to move the sound card out of the way into my top slot x4 pci express slot (by my CPU Heatsink). It wouldnt' turn on and was angrily blinking at me, so using standard technician repair 101 I removed a video card (after removing the plug, etc) thinking it could be a bad seat. Tried to kick on and didn't come on went to go power off the power supply and the system kicked on and started shooting smoke out of the Sound Card, immediately removed it and verified all components were fine. Turned it on with one video card and verified it worked, installed the second with some fiddling and it worked.
Main Question of the Day: How the hell does smoke shoot out from a fairly new high end sound card (Asus Xonar Essence STX). My best guesses are it wasn't seated right, but it should just not work (and the connectors looked clean etc). Maybe the voltages weren't high enough have it running at 1.2 on the IOH atm. Last possible is an arc from being close to the cpu Heatsink about 3/4 of an inch gap between it and the metal monster, and I did run cables between the two but I figure they were insulated.
P.S: On the ironic side while my audio quality I would say suffered 15-20% and I miss the built in amp for my headphones, everybody on vent says my mic went from being a 6- to an 8.