so what is your full system specs ?
HD 6990, GTX 590 will be mostly a reference designed cards... a few of them are being produced and sold out ... and will disappear soon from the market
i can find only EVGA GTX 590 on both ebay and newegg, and both are reference designed cards.
i have never heard of that PSU, are you sure it will handle the GTX 590 just fine ?
another question ? why do you need the GTX 590 ? it's a very hard decision for enthusiasts to decide when they going hard on games
I was actually looking to get a MSI GTX580 since their models have dual-fans providing better cooling. But since I'm limited to one slot PCIe and can't SLI I was trying to find a model of the GTX590 with similar cooling system because it's like a SLI on a single graphics card.
Also I'm looking to try the Dual Monitor gaming (I have a second similar TV-Monitor that I can use for that.)
As my last thought... I'm always looking to buy stuff that will endure time for longest run possible and since I'm a Crisys fan (and other games of sort) that becomes a little tougher.