I'm coming in late to this thread, but wanted to add my experiences of UK vs US healthcare.
Firstly, whilst I was living in Georgia (DEEP south!), I had a friend there who had an undiagnosed gut problem. she'd lost more than 60 % of her body weight over 18 months, and looked awful, very weak all the time, always shaking. Her insurance was through work, so she had to work to be able to afford medical care. She was not allowed more than (I think) 2 weeks sick leave at a time, or she could lose her job. Her insurance company would not pay for her to have the vast majority of the tests she needed. Eventually, about 2 months ago, she managed to get a referral to a doctor who could creatively put forward a need for the tests she required - she had them, her condition was diagnosed, and she is finally receiving treatment. so for 2 years, she was being seen by doctors who could do nothing for her, as her insurance wouldn't cover it.
My sister, lives in the UK, and started displaying similar symptoms to those my friend had in October last year. She went to her GP, got referred to the hospital for tests, and then whinged (as did my family) that the appointment wasn't until late November, and she was away on holiday then. she rebooked her appt, got one in early February, and had exactly the same tests my friend had (luckily they were all clear). Now, my sis is a student, so paid NOTHING for her care. My friend in the states is still paying for some of the tests she had. Her husband has just taken on a 3rd job to cover their costs. (they also have debts from 15 years ago when their only child was born prematurely).
Secondly, maternity care. I'm now 34 weeks pg, and for the first 20 weeks I was in the USA. I paid $130 a month in insurance, the univeristy I was working for picked up the other 3/4 of the insurance premium. I had to find an OB/GYN clinic that my insurance would cover. Luckily, I'd chosen a slightly pricier scheme, as I found a good clinic, and got an appointment for 2 weeks hence. The care was OK - can't complain too much, although they did insist I have a flu jab or (and I quote) 'you'll be killing your baby, do you want that on your concience?' (I made a formal complaint about that doctor actually...). I had an appointment every 4 weeks, scan at each one, blood tested each time, had my anomaly scan over there. And after each appt, I had to pay $100 in fees.
Back in the UK - register with GP, register with midwife, register with hospital - cost to me? well, my taxes. which I pay anyway. and which are no higher than US taxes. Oh, and I get free dental care and prescriptions here too. Plus I get up to 1 year maternity leave (my American friends are deeply jealous of this side of UK 'socialism')
I'd go with NHS anytime. It's a fantastic service, and I love it.