A65 or A77 ?

I am an better than average amateur, but want to upgrade before retirement days send us into "fixed income" range.

Keep 700, which needs some cleaning and no camera shops in my area, or upgrade.  A 65 $300 cheaper than A77.  I need a good camera for low light (house shot of grandkids) without using flash and good action shots.  Then basically some artistic shots that I like to take Macros, etc.  Got the lenses I want, so I am staying with Sony, been with Sony since the days of the F707....5 Sony's I have owned.  Wondering if I can keep my F36AM Flash if I upgrade ?

Opinions please.  Thanks in advance.

--
Michele
Sony Alpha 700
Lenses:
Minolta Normal AF 50mm f/1.7
Minolta Maxxum AF 70-210 MACRO F4 Lens
Sony DT18-250mm F3.5-6.3
and
HVL-F36AM Flash
http://www.pbase.com/michelep