Should I Upgrade to 7970?

Thank you for your feedback. Can anyone else give me some input?

Is it worth waiting for maybe 7950 or 78xx or when there's a price drop when ever nvidia can put some competition on the market.

Right now, my computer runs good. I have no issues on it. All my games can run on highest setting on 1920x1080 with 60+ fps

Future proof? Make sure everything I have is decent enough.

BF3 on ultra only runs 30 FPS, sadly. And what I've been seeing is that my 5850 crossfired isn't seeing much of a performance boost regardless of CPU bottleneck. Most games out there (MMO/Online wise; which are the main games I'm playing right now) aren't optimized for crossfire. Essentially, I'm wasting money by having two 5850s because it hogs more power compared to the performance increase.

Ivy Bridge is around the corner. Would it be better to get the i5 2500k (best price/performance ratio) now or wait a few months after Ivy Bridge (To get all the kinks worked out)?

Just trying to find the best options and reviewing them all before a purchase.

IB will apparently be a 10~15% improvement over Sandybridge, better efficiency and will support PCI-e 3.0 and faster RAM clocks, yes it is worth waiting out for the Ivybridge release and benches to be finalized. I would say that a X6 is still good enough to last you a year until the Piledriver and then the Intel Haswell chips. I would hold out for a while yet architectures are moving fast now.

I don't know what was meant by "Nvidia offering competition" 600/700 will be coming out, and the 7000 series from AMD is hardly dominating, I guess you only have to look at the "AMD" part to realize that.