I'd say you're in pretty good shape. A 620 middle FICO
is all you need for the best rates, and as long as you have
no baddies you should be ok.
A 150k mortgage on a 68k/yr salary is just over
2 times income, which is very conservative. Plus,
VA loans allow for a higher debt to income ratio
than FHA or conventional loans.
Last time I checked, 30yr VA loans are at 5.25% fixed
with 0 points. 15yr fixed is 4.75% with 0 points.
I'm sure one of the experts will chime in, but on the
surface it looks good. 
CanDo
"The right attitude is everything"