Hi Hun,
No worries I'm happy to help...
Sorry you're having a tough time TTC.
Where our stories are different is that I didn't know about my septum until I went private, I actually had 5 chemical pregnancies and the nhs docs told me I was just unlucky!!
After number 5 I decided after not getting listened to I would see a private doctor who decided a hysteroscopy would rule out anything stopping proper implantation and I had the hysteroscopy that showed the septum and some adhesions around it too, the septum looked different from the rest of my uterus which was pink and spongey, the septum looked like chicken.
The septum has limited to no blood flow which is why the pregnancies did not survive but is a good thing if you have it operated on as it's just cut away to reveal the normal uterus with out the need for stitches and a a quick recovery.
I'd had my op within 4 weeks of my first private appointment and could ttc straight away.
They say you can get pregnant with one, it's just harder, I wouldn't recommend putting yourself through the stress, I'd recommend the op.
I would say that it does take an experienced doctor to preform hysteroscopic surgery, if it's not done properly adhesions and other complications can occur.
It was expensive for the private treatment about 5-6k in total, but although I sometimes think I shouldn't have had to spend that money, I really wouldn't have trusted the nhs to do my operation.
How do you know about your septum? Mine was never seen on 3 ultrasounds!
My private doc has a special interest in uterine septums and recurrent miscarriage, he's in Manchester and London if you want to look at his website..
http://www.lucianonardo.com/
Any questions just let me know.
I wonder whether you can get a treated with private health insurance as a gynaecological problem instead of fertility as fertility wouldn't be covered.
Forgot to add that recurrent miscarriage told me that I had to have 3 miscarriages confirmed by ultrasound for further testing!! 
I never got as far as an ultrasound but I had a great gp that did all the recurrent miscarriage blood tests bar karyotyping which we were going to do before I got diagnosed with my septum.
Xx