I can keep my GTX 460 EE SLI or i can step up to the GTX 560 TI SLI. Is it worth the upgrade it'll only cost $60 per card with the step up program at evga. what are some of the main differences from 460 and 560?
Definitly 560 (Dx11+faster+better scaling in SLI+Better temps+lower noice).
Its more expensive yes, but Id never advice you to get something getting "outdated".
460 will hold for 1 year more probably, but not that much longer.
Also note that so far DX12 oficiall resease is 2013 (1 year after worlds end ), and in 2 years i guess you will be able to update for new GPU