If you are not going "all in," as they say...
the α65 will probably set the 2012 base line for a typical DSLR/SLT solution for a couple more years.
If you are going to be a bit more brazen in your SONY photography, looking to buy additional lighting and advanced lenses, and seem to feel you might want a total approach out of the camera body, the α77 offers options the α65 cannot support, without some help. It also adds $500 to the price tag.
So, there you go... as a short response. :)
You could also wait until mid-year, when SONY is supposed to release the Full Frame solutions... which really should be quite grandiose. We shall see... growth has its inherent price.