What a lovely quilt! You have done really well for a first timer. The border may not be to your liking but I think that it is fine.
As for stipling, it is usually done on the machine though I can't see why you can't hand sew it? Maybe someone else on Quilting board can advise. I agree that that would be a nice quilting pattern to have. I have included 2 links for you:
http://www.ehow.co.uk/how_7706528_stipple-quilts.html
http://www.youtube.com/watch?v=6-d_cLN-ayE
Hope this helps and best of luck with the quilting! :D