With DS, I was ready at 5 weeks but DH wanted to wait until my 6 week appointment (mind you, it's a pants on appointment, and we already had our family planning sorted...what was he waiting for?). I did have a c-section so I think he was worried.
Anyway, if all goes well and we get a nice easy VBAC this time, I will probably consider it after the bleeding stops when I feel up to it. I'm thinking probably around 3-5 weeks.
It will be nice to be able to DTD with a full range of motion again. We haven't let being pregnant slow us down too much, but some of our favorite positions just don't feel the same with an ever growing bump.
DH is a boob man and has a thing for "messy" sex, he doesn't mind leakage at all. I'm not bothered in the slightest. I discovered with DS, I was concerned about him messing with (sucking, etc) my boobs while breastfeeding. Turns out, one of the biggest turn ons ever for me. who knew?