My thoughts on your list:
Clothing
3 hats - why, they only have one head, and it's not as if they get dirty
6 long sleeved bodies -yes
6 sleep suits -yes
6 short sleeved vests - not sure why. You either want 6 long, 6 short, or a mixture depending on time of year. Unless you have a very hot house I'd get 6 long for a December baby.
4 t-shirts - nah. No need for clothes in first sizes. Just change babygros as and when.
4 pairs of socks - maybe a couple, but babygros have feet
3 complete outfits - er, no. One if you must, but you don't know what size the baby will come out. Far better to buy one outfit once you have the baby.
2 matinee coats - I have not the fainest idea what a matinee coat is. Will the baby be going to the theatre?
Bootees - no. Socks and babygro with feet
Snowsuit - yup, for December baby
2 cardigans/jumpers - yup
Scratch mittens -probably one pair
Sleeping
Moses basket - Can do, or go straight into cot
Cot/Cot bed - Yes, unless you co-sleep
Cot bumpers - not meant to use with tiny babies, I thought. Always thought that they were a bit pointless.
Mattress - yes
4 fitted sheets - four is a lot
2 cellular blankets
Sleeping bag - yes
Baby monitor - yes, if your house is big enough to need one.
Room thermometer - Can do. You get a little one free with a gro-bag. It's not as scientifically delicate as they make out.
Getting Around
Lambskin inlay for cold days - if you want. Or just a general fleecy insert for buggee
Buggee - Yes, unless you'll sling everywhere
Car seat - Yes, if you use a car
Sling - Yes
Nappy Bag - Nah, just use any old rucksack or whatever.
Bath
Baby bath - yes
Sponges - yes
Baby wash - no need for first few months. Can irritate skin (even sensitive baby type products).
Bath thermometer - no. Use your elbow like our parents did, and a bit of common sense.
Two baby towels (hooded) - no, normal towels fine.
Talc - No, no meant to use talc, dries the delicate skin.
Nappies
Nappy cream - yes
Nappy bucket -yes
Nappy sterilizer - what the hell is one of those? Dry pail reuseables, wash in normal non bio.
Disposable nappies - yes, if you will use
Real nappies - yes, if you will use
Changing mat - yes
Wipes -handy for when out (unless you go Cheeky Wipe)
Baby lotion - not needed
Breast Feeding
Maternity bras - yes, if you mean nursing, but don't buy too early. One or two max until your boobs settle down.
Breast pads (either disposable or reusable)- yes
Curved feeding pillow - some people find helpful
2 bottles - only if you plan on expressing. If you find you need formula, shops are still open after the baby...
Bottle brush - ditto
Breast pump - only if expressing
Nipple covers - no, not unless specifically advised by breastfeeding counsellor
Nipple cream- Yes, Lansinoh
6 Muslin squares - no, about 30!
Does that help?