Hi Rachael - congratulations! I guess if my calculations are right you are now about 31 weeks gone - hope its all going fine. I have boy/girl twins who are now 31 months old, pregnancy and birth seem a long time ago... The most important thing when they arrive is that you feel comfortable where you are and have, if at all feasible, all the possible support you can get - that is, people with your interests first. If anyone offers - accept! Try to tactfully make it clear you want practical help with boring things like cooking, laundry etc as you will be needing every ounce of energy to take care of your babies and your own health. This will also leave you with time to get to know the babies. I bottle and breast fed, very helpful if you can get someone to bottle feed alternate babies each night so you can get some rest. Although it does make for a lot of sterilising and bottle-making in the early days (this is where your heplers come in...). Or express milk if you want them purely breast-fed. I worried a bit about this handing over of my babies in the early days - would they bond if I wasn't being The Mummy at all times - no need to have, there's a lot more to parenting twins than that, and wearing yourself out doen't help anyone. My major mission throughout the naptime years was to get them to sleep at the same time - it really helps if you can get an hour or two when everyone is asleep together.
Something I read described having twins as like being hit by a hurricane - it did take me about 6 to 9 months to start thinking at all straight again. Do listen to advice, but don't feel obliged to follow any of (even mine!), you need to do what feels right to you with your children. Don't feel you have to try to keep up with the mums of single babies - I did and found it incredibly hard work, still don't socialise that much as a mum as most conversation is impossible. Instead, get some good babysitting set up when you feel confident to leave them and make sure you get out and spend non-baby time with your partner and friends - very healthy to escape baby land every so often. Reading over this, it must sound a bit bleak - it's not! And, it does get easier in some ways as they get older.
In terms of equipment, don't overload yourself - Moses baskets not necessary, ours shared one cot until they met in the middle. Go to twins club sales if you have one near you - lots of stuff is barely used before it it outgrown.
Hope this is helpful, do let me know how you get on and if you have more specific questions, do ask.
Good luck!
Shelley