Hi Thirdbump,
I would say there is a lot you can do to prepare - pity I didn't know this first time round though as I had an absolute nightmare establishing breastfeeding (including bleeding nipples!) before my daughter and I got the hang of it. We went on to breastfeed for 2 plus years (not a boast, just saying it is possible after a tough start!).
Basically these days many areas have breastfeeding peer support programmes and/or breastfeeding 'cafes' or drop ins. Theoretically your midwife/GP should be able to signpost these for you. If not perhaps a quick bit of internet research will bring your local ones up.
My local ones are well attended and mums before and after birth are encouraged to come along for a cuppa and a chat. There are also trained breastfeeding counsellors (NHS staff) that run it along with peer supporters.
Another service I know runs locally and may well be up and running in many other areas is that if you let your community midwife team know you are keen to breastfeed they can arrange contact for you with one of the staff that work in their nhs breastfeeding teams (caled different things in different PCT's!) know you would like to meet with them in advance or have a visit after bierth for support and advice.
Also, many hospitals have breastfeeding counsellors that attend the postnatal wards but you may need to ask rather than assume they would offer to reccomend this service!
Also I would totally second the Lansinoh, best stuff ever if you can squeeze it out of the tube, it's like glue!
I hope my input isnt too convoluted! I remember the stresses of establishing breastfeeding and am currently 34 weeks with DC2, I will definitely be hassling every service going in my area for support!
Good luck!