I have a decent system but would really love a few key upgrades to get things looking tip top.
ASUSTeK SABERTOOTH X58
Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz
DDR3 Memory 12288 MBytes
GeForce GTX 560 ti @ 2047 MBytes
Win 7 Home Premium x64
800 W power supply
you will need to buy a new motherboard if you're going to upgrade to IB. you could just upgrade the GPU now, and save up the rest for next year for intel's Haswell CPU if you can't cough out the cash for a new board. doubt the i7-960 will be a huge bottleneck for the 670.
To upgrade to Ivy Bridge you will need a new motherboard such as http://www.newegg.com/Product/Product.aspx?Item=N82E168... Also as hazle said you could just get the GPU and then wait a few months for Haswell to come out and buy the processor then. Haswell will also use a different socket from the Ivy Bridge so the upgrade path will require a new motherboard as well.
fantastic, so you think the 560 ti and the 670 will work well? or do you think that i need to go higher end?
From everything that i've read, the 670 is the best bang for your buck these days
Are you saying you are going to SLI both those cards together? You cant SLi two different cards. I would suggest either just getting the one 670 or selling the 560ti and buying two 670's for SLi. I am not an expert on SLi though so if somebody else could confirm this that would be helpful.
.... wait, you're going to SLI the 670 with the 560ti? i don't keep up with the SLI and Crossfire news, but if memory serves me right, you can't exactly SLI two Nvidia cards from two different models much less two different generations.
you can however run both cards with one, preferably the 560ti, as a dedicated PhysX card.