Try www.babykind.co.uk they have nappy advisors who can come out to your house go through the different options. We used one when we were deciding and she was really helpful.
The best piece of advice she gave us was to not buy one complete set as you don't know whats going to work best for your baby e.g. pampers v huggies v tesco own brand disposable's in the pregnancy forum. We have 1 or 2 each of the nappies you have listed and I don't think it's worked out anymore expensive than buying a birth to potty set. We also have most of the wraps, stayed away from tots bots as apparently the wraps don't contain well although the nappies are excellent.
http://www.usednappies.co.uk/index.php list nappies ebay style, a good way of trying nappies out on the cheap. I've used the site and have recieved nappies in good condition
If your newly pregnant than buy a couple a month (or save the cash) and you'll soon find you'll have a complete set (20 to wash every 3rd day) and it won't hurt your bank balance like it would to just spend £240 in one go