Here's what I currently have going:

Everything updates live (once per second) thanks to the power of javascript!
At the minute, only requires you to install php5 on top of LinuxCoin, and use a custom version of phoenix. I would like to add some database logging with either sqlite or mysql for history stats...
Still WIP!
Oh, and I borrowed the style from
http://bitval.dorphern.dk/ !
I will make my own when the time comes

What size PSU do you have for that three card setup? I can't mine up and think the PSU might not be enough.