Yes. And I'm sorry. For the logistical:
1. Start now. Don't just declutter/give away -- even for the stuff you want to keep, if you aren't going to need it for the next two months, box it up, NOW. And label it as such. I would triage: first week; first month; eventually. The "first week" stuff goes with you in your car and is unpacked immediately; the "first month" stuff can go with movers but is the first of the rest to be unpacked; and the rest of it can be unpacked when you get around to it. This is not to save you time now -- this is to keep your sanity on the far end, when your toddler needs Special Toy NOW and refuses to sleep and it's not in the box labeled "toys" (at least you cut down on the number of other boxes you need to look through).
2. Plan ahead for as much logistical support as possible. Especially off-site support for the kids -- can toddler/infant go to grandma's for a few days? It is hard for kids to watch their room be dismantled, so if they can say "bye" to the room and then appear at the new house a few days later with the new room all done up, it will make life much easier for all of you (some kids also do better if they can see the new place in advance, but others would freak at an empty house, so YMMV). Have daycare or a local sitter on-hand for at least the next week to give you some space to keep unpacking and organizing and dealing with the 73 things you didn't realize you needed to deal with.
3. Can you make a trip a few days ahead of time to get as much set up as possible pre-move? Even having some basic frozen dinners in the freezer, cereal in the pantry, and toilet paper in the bathrooms will help.
Emotional:
1. Take everything your toddler does with a big fat grain of salt. This is a big deal, and the kids don't have the words yet to express it. So do everything you can to ease the transition, and then make plenty of time for nap time, snuggles, free play outside, and whatever else your kid needs to get through. Expect regression on a completely unpredictable basis -- they will ace some things you expected to be a crash-and-burn, and vice-versa. Maintain your consistency on the big things, but assume that every fit/tantrum/etc. comes from being overwhelmed and is best managed through some quiet snuggles or the like.
2. Be kind to yourself, too. What is it that you enjoy most, or that gives you relief? A long walk? Going to the gym? Sitting down with a book? Whatever it is, plan that time into your day. This will be extra hard on you, because you are managing the logistics of the move, an infant's needs, your toddler's emotions, AND your own emotions. Eat regularly, rest regularly, go easy on yourself. Get out in nature as much as you possibly can.
3. Find the good/fun things at the new place and start enjoying them as quickly as possible.
4. Let your toddler be sad and grieve the old place. Empathize, listen, and hug -- you don't need to "fix" anything, or convince them that the new place is better; just let them be sad. It will pass -- and it will pass more quickly if you give them space and comfort to feel those emotions instead of trying to persuade them how much they will love the new place, etc.