We used Tots from birth on DS but gradually moved over to pocket nappies around the time he started nursery.
I think Tots, particularly nippa Tots, are really good for newborns
and for containing breastfed poo explosions.
We used mostly regular unbleached nippa Tots as the Fluffles and Bamboozles didn't come out until we'd bought a fairly huge supply already, but I have used Bamboozles and Fluffles too as I couldn't resist trying them. Bamboozles are much slimmer-fitting but take ages to dry. Fluffles are a bit slimmer-fitting and dry really really quickly but not everyone likes the feel of the fleece (I quite like it myself). I would suggest getting a few of each and seeing what suits you best.
You can use size 2 nippa Tots from birth (I know people who have done it) but your baby will look like a Weeble and you'll have trouble getting clothes to fit over the top.
Liners - I use disposable. I have tried fleece "oh, the poo comes off fleece really easily" liners and can only conclude that DS must be eating superglue when I'm not watching, because his doesn't. Again, I'd suggest getting some fleece and a roll of disposable and seeing what suits you.
We had 18 nappies for DS when he was newborn, and we managed, but I really wished I'd gone for 24. For 6 months plus 12-18 would probably be fine. Also I'd suggest 4-5 wraps (and suggest getting the Motherease poppered wraps not the Tots Bots wraps which IMO are not nearly as good).
You need a pail with a tight-fitting lid -- this can be a specialist nappy pail or just something generic from Homebase or B&Q.
Also I'd suggest a couple of waterproof bags for when you're out and about or travelling (or are just changing baby somewhere else in your house from where your nappy pail is).
You can use washable wipes in which case you'd need those too, otherwise can use cotton wool and water or regular wipes.
And probably, if you're using Tots, something to boost them with overnight once your DC gets old enough that you don't need to change him or her overnight (you know, I can't remember when this is -- around 2-3 months, perhaps?).
May be worth trying a fleece wrap for overnight too (in contrast to their PUL wraps, the Tots fleece ones are very good although IMO the gold standard in fleece wraps is the Stacinator). But again probably only when you aren't needing to change your DC overnight.